US3136571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch
Assignee: WEATHER SEAL Inc
•
Filing: 1961-04-05
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Granted: 1964-06-09
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Expires: 1981-04-05
Abstract
No abstract record available.
Inventors
- 👤 Waldo O Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:27
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/14; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0972; Y10T292/0994
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN COMBINATION IN A DOOR HAVING AN INNER AND AN OUTER SURFACE AND A LOCK AND LATCH ASSEMBLY, A FRAME MEANS FOR ATTACHMENT TO A DOOR ON THE INNER SURFACE THEREOF, A LATCH HANDLE PIVOTALLY CARRIED BY SAID FRAME MEANS FOR OPERATIVE MOVEMENT, LATCH MEANS SLIDABLY CARRIED BY SAID FRAME MEANS AND RESILIENTLY URGED TO AN OPERATIVE POSITION EXTENDING THEREFROM TOWARDS A DOOR FRAME, SAID LATCH HANDLE HAVING A PORTION THEREOF ENGAGING SAID LATCH MEANS TO MOVE IT TRANSVERSELY INWARDLY OF THE DOOR TO RELEASE IT FROM ENGAGING ANY ASSOCIATED MEANS ON A DOOR FRAME WHEN SAID LATCH HANDLE IS OPERATIVELY MOVED, AND A LATCH LOCK BAR SLIDABLY CARRIED BY SAID FRAME MEANS AND ENGAGING SAID LATCH MEANS IN ONE POSITION TO RETAIN IT IN AN EXTENDED OPERATIVE POSITION, SAID LATCH LOCK BAR ALSO ENGAGING SAID LATCH HANDLE IN SAID ONE POSITION TO PREVENT OPERATIVE MOVEMENT THEREOF.
Claim 2
Dependent Claim
147 words
IN COMBINATION IN A DOOR HAVING AN INNER AND AN OUTER SURFACE AND A LOCK AND LATCH ASSEMBLY, A FRAME MEANS FOR ATTACHMENT TO A DOOR ON THE INNER SURFACE THEREOF, A LATCH HANDLE PIVOTALLY CARRIED BY SAID FRAME MEANS FOR OPERATIVE MOVEMENT, LATCH MEANS SLIDABLY CARRIED BY SAID FRAME MEANS AND RESILIENTLY URGED TO AN OPERATIVE POSITION EXTENDING THEREFROM TOWARDS A DOOR FRAME, SAID LATCH HANDLE HAVING A PORTION THEREOF ENGAGING SAID LATCH MEANS TO MOVE IT TRANSVERSELY INWARDLY OF THE DOOR TO RELEASE IT FROM ENGAGING ANY ASSOCIATED MEANS ON A DOOR FRAME WHEN SAID LATCH HANDLE IS OPERATIVELY MOVED, AND A LATCH LOCK BAR SLIDABLY CARRIED BY SAID FRAME MEANS AND ENGAGING SAID LATCH MEANS IN ONE POSITION TO RETAIN IT IN AN EXTENDED OPERATIVE POSITION, SAID LATCH LOCK BAR ALSO ENGAGING SAID LATCH HANDLE IN SAID ONE POSITION TO PREVENT OPERATIVE MOVEMENT THEREOF.
References Cited (Backward Citations)
US2331403A
Cited
US2978267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |