95 patents currently held

4 more in force are now held by other companies

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

24 more records may belong here and await a decision; they are not counted.

The next term ends in Apr 2027. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Apr 2027

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 204320442045

notable patents fee due within 90 days all others Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Annular Ring and Non-Pneumatic Tire US 9,751,270

The most cited patent in this portfolio, cited by 63 later US patents, top 5% of utility patents granted in 2017 in our data. Protection runs to 2034.

Ends Jun 2034 · High confidence Also notable

Track System for Traction of a Vehicle US 11,046,377

Cited by 26 later US patents, top 5% of utility patents granted in 2021 in our data. Protection runs to 2031. A terminal disclaimer caps this term to an earlier patent's.

Ends Jun 2031 · High confidence Also notable

Track Assembly for an Off-Road Vehicle US 10,272,959

Cited by 25 later US patents, top 10% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2031.

Ends Jun 2031 · Medium confidence

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

3 fees due Nov 19 to 30, 2026 · next Nov 19
1 fee due Dec 30, 2026
The maintenance fee for Endless Track for Traction of a Vehicle (US 9,067,631) comes due Dec 30, 2026. Unpaid by Jun 30, 2027, it lapses early.
1 fee due Jan 11, 2027
The maintenance fee for Annular Ring and Non-Pneumatic Tire (US 11,697,259) comes due Jan 11, 2027. Unpaid by Jul 12, 2027, it lapses early.
1 fee due Feb 27, 2027
The maintenance fee for Track System for Traction of a Vehicle (US 10,392,060) comes due Feb 27, 2027. Unpaid by Aug 27, 2027, it lapses early.
1 fee due Mar 3, 2027
The maintenance fee for Track Assembly for Traction of an Off-Road Vehicle (US 10,399,619) comes due Mar 3, 2027. Unpaid by Sep 3, 2027, it lapses early.
1 fee due Apr 20, 2027
The maintenance fee for Endless Track for Traction of a Vehicle (US 9,162,718) comes due Apr 20, 2027. Unpaid by Oct 20, 2027, it lapses early.
2 fees due Jun 5 to 15, 2027 · next Jun 5
1 fee due Jul 2, 2027
The maintenance fee for Wheel Comprising a Tire (US 11,858,300) comes due Jul 2, 2027. Unpaid by Jan 3, 2028, it lapses early.
1 fee due Aug 13, 2027
The maintenance fee for Track System for Traction of a Vehicle (US 11,897,558) comes due Aug 13, 2027. Unpaid by Feb 14, 2028, it lapses early.
2 fees due Sep 19, 2027
2 fees due Oct 16, 2027
1 fee due Nov 12, 2027
The maintenance fee for Track System for Traction of a Vehicle (US 10,647,367) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Oct 16Assignment recorded on 1 record: Camso Inc. to Ceat Limited Recorded Oct 16, 2026, executed Sep 1, 2025. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76401, frame 821.
1 of the patents on this record was granted since Aug 16, 2026

What they patent

The 5 largest of its 62 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Annular Ring and Non-Pneumatic Tire	5 in force	to Nov 2034
Track Assembly For Traction Of an Off-Road Vehicle	4 in force	to Oct 2034
Endless Track for Traction of a Vehicle (2011)	4 in force	to Nov 2033
Endless Track for Traction of a Vehicle (2011)	4 in force	to Aug 2033
Wheel of a Track Assembly of a Tracked Vehicle	4 in force	to Apr 2033

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US D680,561	Endless Track of an Off-Road Vehicle In force Term ends Apr 23, 2027 · High confidence	In force	Term ends Apr 23, 2027	High confidence
US D681,071	Endless Track of an Off-Road Vehicle In force Term ends Apr 30, 2027 · High confidence	In force	Term ends Apr 30, 2027	High confidence
US 7,708,092	Endless Track Suspension In force Term ends May 9, 2027 · High confidence	In force	Term ends May 9, 2027	High confidence
US D682,159	Upper Frame of a Track System for an All-Terrain Vehicle In force Term ends May 14, 2027 · High confidence	In force	Term ends May 14, 2027	High confidence
US D682,160	Lower Frame of a Track System for an All-Terrain Vehicle In force Term ends May 14, 2027 · High confidence	In force	Term ends May 14, 2027	High confidence
US D682,161	Frame of a Track System for an All-Terrain Vehicle In force Term ends May 14, 2027 · High confidence	In force	Term ends May 14, 2027	High confidence
US 7,862,131	Dual Mode Undercarriage for Tracked Vehicle In force Term ends Jun 2, 2027 · High confidence	In force	Term ends Jun 2, 2027	High confidence
US 8,833,873	Drive Track for Snowmobile or Tracked Vehicle In force Ends no later than Jun 26, 2027 · Medium confidence	In force	Ends no later than Jun 26, 2027	Medium confidence
US 8,083,296	Drive Track for Snowmobile or Tracked Vehicle In force Ends no later than Aug 12, 2027 · Medium confidence	In force	Ends no later than Aug 12, 2027	Medium confidence
US 7,806,487	Noiseless Rubber Tracks for Tracked Vehicles In force Term ends Sep 19, 2027 · High confidence	In force	Term ends Sep 19, 2027	High confidence

10 of 95 patents shown.

Pro members see all 95.

Pro members: see all 95 patents

Also on record, not counted in the 95: 4 patents in force now held by others · 20 patents ended · 15 applications pending · 26 applications abandoned. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built

Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.

Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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Camso Inc.