Patent CA536672A successfully refreshed from Google Patents.
Patent US3381333A successfully refreshed from Google Patents.
US3381333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-latching mechanism for hinges
Assignee: Ajax Hardware Manufacturing Corp
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Filing: 1966-11-14
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Granted: 1968-05-07
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Torsti T T Jerila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:32
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/10; E05D11/1014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A SELF-LATCHING HINGE, THE COMBINATION OF: FIRST AND SECOND HINGE MEMBERS HAVING AXIALLY ALIGNED HINGE KNUCKLES FORMING AN AXIALLY EXTENDING HINGE PIN OPENING; HINGE PIN MEANS RECEIVED IN SAID HINGE PIN OPENING OF SAID HINGE MEMBERS CONNECTING SAID HINGE MEMBERS FOR HINGED MOVEMENT BETWEEN OPEN AND CLOSED POSITIONS; SELF-LATCHING MEANS OPERABLY CONNECTED BETWEEN SAID HINGE MEMBERS FOR RESILIENTLY URGING SAID MEMBERS TOWARD A CLOSED POSITION AND PERMITTING SELECTIVE MOVEMENT TOWARD AN OPEN POSITION; AND MEANS RESILIENTLY URGED INTO ENGAGEMENT BETWEEN SAID HINGE PIN MEANS AND SELF-LATCHING MEANS FOR RETAINING SAID HINGE PIN MEANS AGAINST AXIAL MOVEMENT RELATIVE TO SAID HINGE MEMBERS WHEREIN SAID ENGAGEMENT MEANS INCLUDES A PORTION OF SAID SELF-LATCHING MEANS RADIALLY ENGAGED IN A RECESS OF SAID HINGE PIN MEANS.
Claim 2
Dependent Claim
123 words
IN A SELF-LATCHING HINGE, THE COMBINATION OF: FIRST AND SECOND HINGE MEMBERS HAVING AXIALLY ALIGNED HINGE KNUCKLES FORMING AN AXIALLY EXTENDING HINGE PIN OPENING; HINGE PIN MEANS RECEIVED IN SAID HINGE PIN OPENING OF SAID HINGE MEMBERS CONNECTING SAID HINGE MEMBERS FOR HINGED MOVEMENT BETWEEN OPEN AND CLOSED POSITIONS; SELF-LATCHING MEANS OPERABLY CONNECTED BETWEEN SAID HINGE MEMBERS FOR RESILIENTLY URGING SAID MEMBERS TOWARD A CLOSED POSITION AND PERMITTING SELECTIVE MOVEMENT TOWARD AN OPEN POSITION; AND MEANS RESILIENTLY URGED INTO ENGAGEMENT BETWEEN SAID HINGE PIN MEANS AND SELF-LATCHING MEANS FOR RETAINING SAID HINGE PIN MEANS AGAINST AXIAL MOVEMENT RELATIVE TO SAID HINGE MEMBERS WHEREIN SAID ENGAGEMENT MEANS INCLUDES A PORTION OF SAID SELF-LATCHING MEANS RADIALLY ENGAGED IN A RECESS OF SAID HINGE PIN MEANS.
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) | 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 |