Patent US3371947A successfully refreshed from Google Patents.
US3371947A
Expired / Lapsed
US
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Safety lock
Assignee: JAMES ROBERT GRIDLEY
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Filing: 1966-02-04
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Granted: 1968-03-05
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Expires: 1986-02-04
Abstract
No abstract record available.
Inventors
- 👤 Gridley James Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:39
CPC Classifications
E; E05; E05B; E05B81/00; E05B81/12; E05B81/20; E05B63/00; E05B63/12; E05B63/127; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0945; Y10T292/0951; Y10T292/0959; Y10T292/096; Y10T292/1014; Y10T292/1021; Y10T292/1037
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A DOOR LOCKING MECHANISM COMPRISING IN COMBINATION A HOUSING, A BOLT SLIDABLY MOUNTED IN SAID HOUSING AND HAVING A PLURALITY OF GROOVES IN ONE SURFACE THEREOF, SWITCH MEANS COMPRISING A PAIR OF CONTACT POINTS, A PAIR OF HINGED CONTACT POINT SUPPORTING MEMBERS, RATCHET CAM MEANS ROTATABLY MOUNTED ON ONE OF SAID CONTACT POINTSUPPORTING MEMBERS AND IN OPERATIVE CONTACT WITH THE GROOVED SURFACE OF SAID BOLT AND ELECTRO-MECHANICAL MEANS CONTROLLED BY SAID SWITCH MEANS FOR EXERTING A PULL ON SAID BOLT.
Claim 2
Dependent Claim
80 words
A DOOR LOCKING MECHANISM COMPRISING IN COMBINATION A HOUSING, A BOLT SLIDABLY MOUNTED IN SAID HOUSING AND HAVING A PLURALITY OF GROOVES IN ONE SURFACE THEREOF, SWITCH MEANS COMPRISING A PAIR OF CONTACT POINTS, A PAIR OF HINGED CONTACT POINT SUPPORTING MEMBERS, RATCHET CAM MEANS ROTATABLY MOUNTED ON ONE OF SAID CONTACT POINTSUPPORTING MEMBERS AND IN OPERATIVE CONTACT WITH THE GROOVED SURFACE OF SAID BOLT AND ELECTRO-MECHANICAL MEANS CONTROLLED BY SAID SWITCH MEANS FOR EXERTING A PULL ON SAID BOLT.
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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |