US3238581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toggle latch construction
Assignee: Hartwell Corp
•
Filing: 1964-06-12
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Granted: 1966-03-08
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Expires: 1984-06-12
Abstract
No abstract record available.
Inventors
- 👤 Frank L Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:08
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/10; E05C19/12; E05C19/14; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1418; Y10T24/142; Y10T24/21; Y10T24/2143; Y10T24/2145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A TOGGLE LATCH CONSTRUCTION, COMPRISING: (A) AN EYE BOLT HAVING A SCREW-THREADED SHANK; (B) MEANS FOR MOVING SAID BOLT BETWEEN AND EXTENDED AND A RETRACTED POSITION; (C) A KEEPER FOR SAID BOLT; (D) AN ADJUSTMENT NUT SCREW-THREADED ON SAID BOLT SHANK, SAID NUT INCLUDING A JOURNAL SLEEVE; (E) AND A CROSSBAR RETAINED ON SAID JOURNAL SLEEVE END ENGAGEABLE WITH SAID KEEPER.
Claim 2
Dependent Claim
61 words
A TOGGLE LATCH CONSTRUCTION, COMPRISING: (A) AN EYE BOLT HAVING A SCREW-THREADED SHANK; (B) MEANS FOR MOVING SAID BOLT BETWEEN AND EXTENDED AND A RETRACTED POSITION; (C) A KEEPER FOR SAID BOLT; (D) AN ADJUSTMENT NUT SCREW-THREADED ON SAID BOLT SHANK, SAID NUT INCLUDING A JOURNAL SLEEVE; (E) AND A CROSSBAR RETAINED ON SAID JOURNAL SLEEVE END ENGAGEABLE WITH SAID KEEPER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |