US3334935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch
Assignee: Old Carco LLC
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Filing: 1965-07-02
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Granted: 1967-08-08
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 James W Eddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:30
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; E05B85/243; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047; Y10T292/1075; Y10T292/1083; Y10T292/1092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A MECHANISM FOR LATCHING A MOVABLE MEMBER TO A FIXED MEMBER COMPRISING (A) A BOLT ASSEMBLY ON ONE OF SAID MEMBERS DEFINING A SAFETY TOOTH AND A FULLY LATCHED TOOTH; (B) COACTING MEANS ON SAID FIXED AND MOVABLE MEMBERS OPERATIVE IN RESPONSE TO CLOSING OF SAID MOVABLE MEMBER ON SAID FIXED MEMBER TO MOVE SAID BOLT TO A POSITION BLOCKING RETURN MOVEMENT OF SAID MOVABLE MEMBER; (C) DETENT MEANS ON SAID ONE MEMBER OPERATIVE IN RESPONSE TO THE AFORESAID MOVEMENT OF SAID BOLT TO MOVE (1) FIRST INTO A POSITION OF ENGAGEMENT WITH SAID SAFETY TOOTH AND THEREAFTER, WITH CONTINUED MOVEMENT OF SAID BOLT, (2) INTO A POSITION OF ENGAGEMENT WITH SAID FULLY LATCHED TOOTH, WHEREBY TO BLOCK RETURN MOVEMENT OF SAID BOLT; (D) RELEASE MEANS ON SAID ONE MEMBER OPERATIVE TO MOVE SAID DETENT MEANS OUT OF ENGAGEMENT WITH SAID TEETH, WHEREBY TO ALLOW RETURN MOVEMENT OF SAID BOLT AND THEREBY ALLOW SAID MOVABLE MEMBER TO BE OPENED; (E) LOCK MEANS ON SAID ONE MEMBER OPERATIVE TO RENDER SAID RELEASE MEANS INOPERATIVE, WHEREBY TO PREVENT RELEASE OF SAID DETENT MEANS; AND
Claim 2
Dependent Claim
182 words
A MECHANISM FOR LATCHING A MOVABLE MEMBER TO A FIXED MEMBER COMPRISING (A) A BOLT ASSEMBLY ON ONE OF SAID MEMBERS DEFINING A SAFETY TOOTH AND A FULLY LATCHED TOOTH; (B) COACTING MEANS ON SAID FIXED AND MOVABLE MEMBERS OPERATIVE IN RESPONSE TO CLOSING OF SAID MOVABLE MEMBER ON SAID FIXED MEMBER TO MOVE SAID BOLT TO A POSITION BLOCKING RETURN MOVEMENT OF SAID MOVABLE MEMBER; (C) DETENT MEANS ON SAID ONE MEMBER OPERATIVE IN RESPONSE TO THE AFORESAID MOVEMENT OF SAID BOLT TO MOVE (1) FIRST INTO A POSITION OF ENGAGEMENT WITH SAID SAFETY TOOTH AND THEREAFTER, WITH CONTINUED MOVEMENT OF SAID BOLT, (2) INTO A POSITION OF ENGAGEMENT WITH SAID FULLY LATCHED TOOTH, WHEREBY TO BLOCK RETURN MOVEMENT OF SAID BOLT; (D) RELEASE MEANS ON SAID ONE MEMBER OPERATIVE TO MOVE SAID DETENT MEANS OUT OF ENGAGEMENT WITH SAID TEETH, WHEREBY TO ALLOW RETURN MOVEMENT OF SAID BOLT AND THEREBY ALLOW SAID MOVABLE MEMBER TO BE OPENED; (E) LOCK MEANS ON SAID ONE MEMBER OPERATIVE TO RENDER SAID RELEASE MEANS INOPERATIVE, WHEREBY TO PREVENT RELEASE OF SAID DETENT MEANS; AND
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |