Patent US3381332A successfully refreshed from Google Patents.
US3381332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-latching hinge
Assignee: Ajax Hardware Manufacturing Corp
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Filing: 1966-09-20
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Granted: 1968-05-07
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Expires: 1986-09-20
Abstract
No abstract record available.
Inventors
- 👤 Torsti T T Jerila
- 👤 Viles K Fremstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:22
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/10; E05D11/1028; E05D11/105; E05Y; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN A SELF-LATCHING HINGE, THE COMBINATION OF: FIRST AND SECOND HINGE MEMBERS HAVING INTERFITTING AXIALLY ALIGNED HINGE KNUCKLES FORMED THEREON, ONE OF SAID HINGE KNUCKLES OF SAID FIRST HINGE MEMBER HAVING AN OUTER GENERALLY CIRCUMFERENTIALLY EXTENDING SURFACE TERMINATING IN A GENERALLY AXIALLY EXTENDING END, MEANS ON ONE OF SAID HINGE MEMBERS FOR SECURING SAID ONE MEMBER TO A DOOR AND ON THE OTHER OF SAID HINGE MEMBERS FOR SECURING SAID OTHER MEMBER TO A FRAME; HINGE PINS MEANS EXTENDING AXIALLY THROUGH SAID HINGE KNUCKLES OF SAID FIRST AND SECOND HINGE MEMBERS FOR HINGEDLY CONNECTING SAID HINGE MEMBERS MOVABLE BETWEEN DOOR OPEN AND DOOR CLOSED POSITIONS; AND A LATCH CARRIAGE ASSEMBLY INCLUDING A CARRIAGE SEPARATE FROM SAID HINGE MEMBERS, AN ENGAGEMENT MEMBER ON SAID CARRIAGE ENGAGED WITH SAID SECOND HINGE MEMBER AND REQUIRING MOVEMENT OF SAID CARRIAGE WITH SAID SECOND HINGE MEMBER, MEANS ON SAID CARRIAGE RECEIVING SAID HINGE PIN MEANS THERETHROUGH FOR MOUNTING SAID CARRIAGE MOVABLE WITH SAID SECOND HINGE MEMBER BETWEEN SAID HINGE MEMBER DOOR OPEN AND DOOR CLOSED POSITIONS, A LATCH MEMBER, RESILIENT MEANS BETWEEN SAID LATCH MEM-
Claim 2
Dependent Claim
180 words
IN A SELF-LATCHING HINGE, THE COMBINATION OF: FIRST AND SECOND HINGE MEMBERS HAVING INTERFITTING AXIALLY ALIGNED HINGE KNUCKLES FORMED THEREON, ONE OF SAID HINGE KNUCKLES OF SAID FIRST HINGE MEMBER HAVING AN OUTER GENERALLY CIRCUMFERENTIALLY EXTENDING SURFACE TERMINATING IN A GENERALLY AXIALLY EXTENDING END, MEANS ON ONE OF SAID HINGE MEMBERS FOR SECURING SAID ONE MEMBER TO A DOOR AND ON THE OTHER OF SAID HINGE MEMBERS FOR SECURING SAID OTHER MEMBER TO A FRAME; HINGE PINS MEANS EXTENDING AXIALLY THROUGH SAID HINGE KNUCKLES OF SAID FIRST AND SECOND HINGE MEMBERS FOR HINGEDLY CONNECTING SAID HINGE MEMBERS MOVABLE BETWEEN DOOR OPEN AND DOOR CLOSED POSITIONS; AND A LATCH CARRIAGE ASSEMBLY INCLUDING A CARRIAGE SEPARATE FROM SAID HINGE MEMBERS, AN ENGAGEMENT MEMBER ON SAID CARRIAGE ENGAGED WITH SAID SECOND HINGE MEMBER AND REQUIRING MOVEMENT OF SAID CARRIAGE WITH SAID SECOND HINGE MEMBER, MEANS ON SAID CARRIAGE RECEIVING SAID HINGE PIN MEANS THERETHROUGH FOR MOUNTING SAID CARRIAGE MOVABLE WITH SAID SECOND HINGE MEMBER BETWEEN SAID HINGE MEMBER DOOR OPEN AND DOOR CLOSED POSITIONS, A LATCH MEMBER, RESILIENT MEANS BETWEEN SAID LATCH MEM-
References Cited (Backward Citations)
US3205532A
Cited
US3255484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |