37 patents currently held

22 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.

1 more record may belong here and awaits a decision; it is not counted.

The next term ends in Oct 2034. from the record

Of the 22 now held by other companies, 12 were conveyed to HS Produkt D O O in the filing they arrived in, and 10 more name another party. Each row says which.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Oct 2034

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

202620272028202920302031203220332034 2035 2036 2037 2038 2039 2040 2041 2042 204320442045

notable patents 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.

Notable patents

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

Notable

Firearm Sights and Assemblies US 11,747,112

Cited by 18 later US patents, top 5% of utility patents granted in 2023 in our data. Protection runs to 2040.

Ends Nov 2040 · High confidence Also notable

Free Floating Handguard Anchoring System US 10,401,122

Cited by 29 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 2038.

Ends Jun 2038 · High confidence Also notable

Rifle US D1,024,252

Cited by 8 later US patents, top 25% of design patents granted in 2024 in our data. Protection runs to 2039. A terminal disclaimer is on file and its reference is not resolved, so no cap is applied and the date may move earlier, never later.

Ends no later than Apr 2039 · Medium confidence

Formerly held, still cited

Notable

Pistol US D994,821

Cited by 18 later US patents, top 10% of design patents granted in 2023 in our data. Protection runs to 2038.

now held by HS Produkt, D.O.O.

Ends Aug 2038 · High 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.

1 fee due Jun 19, 2027
The maintenance fee for Firearm Sights and Assemblies (US 11,846,491) comes due Jun 19, 2027. Unpaid by Dec 20, 2027, it lapses early.
2 fees due Oct 2 to 16, 2027 · next Oct 2

Which patents, and when each one lapses · Pro

Recent changes

Nov 3Assignment recorded on 1 record: Williams, Charles David and 1 other to Springfield, Inc. Recorded Nov 3, 2026, executed Nov 30, 2018. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76609, frame 549.
1 of the patents on this record was granted since Aug 16, 2026

What they patent

The 5 largest of its 20 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Optic for a Firearm	6 in force	to Nov 2040
Free Floating Handguard Anchoring System	6 in force	to Jun 2038
Rifle	3 in force	to Oct 2041
Firearm Receiver	3 in force	to May 2038
Bolt Assembly	2 in force	to Nov 2041

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US D862,629	Handguard In force Term ends Oct 8, 2034 · High confidence	In force	Term ends Oct 8, 2034	High confidence
US D865,897	Pistol In force Term ends Nov 5, 2034 · High confidence	In force	Term ends Nov 5, 2034	High confidence
US D875,870	Firearm Receiver In force Term ends Feb 18, 2035 · High confidence	In force	Term ends Feb 18, 2035	High confidence
US D923,129	Free Floating Handguard Anchoring System In force Term ends Jun 22, 2036 · High confidence	In force	Term ends Jun 22, 2036	High confidence
US D944,351	Firearm Receiver In force Term ends Feb 22, 2037 · High confidence	In force	Term ends Feb 22, 2037	High confidence
US 10,871,338	Half-Cock Trigger Safety Assembly In force Term ends Aug 11, 2037 · High confidence	In force	Term ends Aug 11, 2037	High confidence
US D963,099	Rifle In force Term ends Sep 6, 2037 · High confidence	In force	Term ends Sep 6, 2037	High confidence
US D963,780	Optic for a Firearm In force Term ends Sep 13, 2037 · High confidence	In force	Term ends Sep 13, 2037	High confidence
US 10,222,150	Latched Charging Handle with Mechanical Advantage Separator held by Springfield, Inc. D/B/A Springfield Armory In force Term ends Mar 6, 2038 · High confidence	In force	Term ends Mar 6, 2038	High confidence
US 10,788,278	Latched Charging Handle with Mechanical Advantage Separator In force Term ends Mar 6, 2038 · High confidence	In force	Term ends Mar 6, 2038	High confidence

10 of 37 patents shown.

Pro members see all 37.

Pro members: see all 37 patents

Also on record, not counted in the 37: 22 patents in force now held by others · 7 patents ended · 7 applications pending · 4 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.

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

Export every term end as CSV · Pro

Springfield, Inc.