US3073142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device
Assignee: Mark C Stebbins and Sons Inc
•
Filing: 1961-06-06
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Granted: 1963-01-15
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Expires: 1981-06-06
Abstract
No abstract record available.
Inventors
- 👤 Mark C Stebbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:01
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/10; E05B65/1046; E05B65/106; E05B65/1066; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0908; Y10T292/57; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5159; Y10T70/80; Y10T70/8946; Y10T74/00; Y10T74/11; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20666; Y10T74/20732; Y10T74/20744
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
IN COMBINATION WITH A DOOR LATCH OPERATED BY A CROSSBAR DEPRESSIBLE TOWARD THE DOOR ON WHICH THE LATCH IS MOUNTED, A LOCKING DEVICE FOR THE DOOR COMPRISING, A LOCK ADAPTED TO BE MOUNTED ON A DOOR ADJACENT SAID LATCH AND HAVING A PLUNGER RELEASABLY SECURED BY SAID LOCK IN A POSITION IN WHICH IT EXTENDS AWAY FROM THE DOOR TOWARD SAID CROSSBAR, A STUD ON SAID CROSSBAR, MEANS FORMING A FRANGIBLE STRUT RELEASABLY SECURED IN MOVEMENT-OBSTRUCTIVE RELATION TO SAID CROSSBAR BY ENGAGEMENT WITH SAID PLUNGER AND SAID STUD, ONE OF THE PARTS DEFINED AS SAID STUD AND SAID PLUNGER AT THE PORTION OF ITS ENGAGEMENT WITH SAID STRUT BEING CONTOURED SO THAT UPON APPLICATION OF EXTRAORDINARY FORCE TO SAID CROSSBAR, SAID CONTOURED PORTION DESTROYS CONTIGUOUS PORTIONS OF SAID STRUT TO FACILITATE LATCH OPERATION INDEPENDENTLY OF THE CONDITION OF SAID LOCK.
References Cited (Backward Citations)
US1139258A
Cited
US2212957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |