Claverham Limited

23 patents currently held · Updated Nov 14, 2026

2 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.

Ending by 2030

Jun 2030

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

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 Feb 6, 2027
The maintenance fee for Roller bearings (US 10,371,207) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
2 fees due Apr 8 to 22, 2027 · next Apr 8
1 fee due May 26, 2027
The maintenance fee for Relief slot for a load bearing assembly (US 10,487,876) comes due May 26, 2027. Unpaid by Nov 26, 2027, it lapses early.
2 fees due Sep 8 to 10, 2027 · next Sep 8
1 fee due Oct 28, 2027
The maintenance fee for Hydraulic valve (US 10,634,174) comes due Oct 28, 2027. Unpaid by Apr 28, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US 8,070,094	Aircraft Landing Gear Actuator In force Term ends Jun 20, 2030 · High confidence	In force	Term ends Jun 20, 2030	High confidence
US 8,740,463	Integral spherical bearing and lug for aerospace applications In force Term ends Nov 2, 2032 · From the USPTO record	In force	Term ends Nov 2, 2032	From the USPTO record
US 9,278,756	Dry lubricated linear actuator for in blade rotor control In force Term ends Nov 15, 2034 · From the USPTO record	In force	Term ends Nov 15, 2034	From the USPTO record
US 9,440,738	Dry lubricated rotary actuator for in blade rotor control In force Term ends Dec 9, 2034 · From the USPTO record	In force	Term ends Dec 9, 2034	From the USPTO record
US 9,407,121	Electromechanical Rotary Actuator and Method In force Term ends Mar 14, 2035 · High confidence	In force	Term ends Mar 14, 2035	High confidence
US 9,517,839	Electromechanical linear actuator for in blade rotor control In force Term ends Oct 29, 2035 · From the USPTO record	In force	Term ends Oct 29, 2035	From the USPTO record
US 10,036,408	Hydraulic valve In force Term ends Aug 5, 2036 · From the USPTO record	In force	Term ends Aug 5, 2036	From the USPTO record
US 10,655,753	Hydraulic valve In force Term ends Nov 25, 2036 · From the USPTO record	In force	Term ends Nov 25, 2036	From the USPTO record
US 10,487,876	Relief slot for a load bearing assembly In force Term ends Mar 30, 2037 · From the USPTO record	In force	Term ends Mar 30, 2037	From the USPTO record
US 10,703,458	Gurney flap In force Term ends Mar 31, 2037 · From the USPTO record	In force	Term ends Mar 31, 2037	From the USPTO record

10 of 23 patents shown.

Pro members see all 23.

Pro members: see all 23 patents

Also on record, not counted in the 23: 2 patents in force now held by others · 6 lapsed for an unpaid fee. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

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

Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

5 no status recorded

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