The Patent Finder

Hanchett Entry Systems, Inc.

122 patents currently held · Updated Nov 15, 2026
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 2 name spellings.

20
Ending by 2030
Apr 2027
Next term end

When these terms end

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.
  • 2 fees due Feb 4 to 13, 2027 · next Feb 4
  • 2 fees due Mar 17 to 19, 2027 · next Mar 17
  • 2 fees due Apr 6, 2027
  • 3 fees due May 5 to 17, 2027 · next May 5
  • 2 fees due Jun 8 to 29, 2027 · next Jun 8
  • 3 fees due Jul 9 to 30, 2027 · next Jul 9
  • 3 fees due Aug 18 to 27, 2027 · next Aug 18
  • 1 fee due Sep 22, 2027
    The maintenance fee for System for providing power and data transmission between a door and a frame (US 9,290,966) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.
  • 2 fees due Oct 7 to 14, 2027 · next Oct 7

Which patents, and when each one lapses · Pro

Recent changes

  • 1 term has ended since Aug 17, 2026

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.
PatentTitleStatus Expires Confidence
US 7,438,335Compact electric strike with preload release capability
In force
 · From the USPTO record
In forceFrom the USPTO record
US D682,655Electromagnetic lock
In force
 · From the USPTO record
In forceFrom the USPTO record
US D690,576Electromagnetic lock
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,157,302Integration of vertical adjustability in an electric strike
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,465,067Integration of vertical adjustability in an electric strike
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,980,603Rotating latch for latching and unlatching a door
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,146,966Integration of vertical adjustability in an electric strike
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,882,162Multiple point door locking system, with handle turning direction control
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,138,660Multiple point door locking system
In force
 · From the USPTO record
In forceFrom the USPTO record
US D725,992Swivel handle
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 122 patents shown.
Pro members see all 122.
Pro members: see all 122 patents
Also on record, not counted in the 122: 1 patent in force now held by others · 2 lapsed for an unpaid fee · 21 ended at full term · 2 surrendered on reissue. 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.

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.

2 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited