US3134253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time operated releasable keeper lock
Assignee: Individual
•
Filing: 1962-07-25
•
Granted: 1964-05-26
•
Expires: 1982-07-25
Abstract
No abstract record available.
Inventors
- 👤 O'brien Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:58
CPC Classifications
E; E05; E05B; E05B43/00; E05B43/005; E05B47/00; E05B47/0046; Y; Y10; Y10T; Y10T292/00; Y10T292/68; Y10T292/696; Y10T292/699; Y10T70/00; Y10T70/70; Y10T70/7006; Y10T70/7028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN COMBINATION WITH A LOCK HAVING A LATCH WHICH IS MANUALLY RETRACTABLE FROM ONE SIDE AND ONLY KEY RETRACTABLE FROM THE OTHER SIDE, A RELEASABLE KEEPER FOR SAID LATCH MOUNTED FOR MOVEMENT TOWARDS AND AWAY FROM SAID LATCH, MEANS TO RETAIN SAID KEEPER IMMOVABLY AGAINST SAID LATCH, AND TIME-CONTROLLED MEANS OPERATIVELY CONNECTED TO SAID KEEPER RETAINING MEANS TO RELEASE THE SAME FOR A PREDETERMINED PERIOD AND PERMIT SAID KEEPER TO BE MOVABLE INTO AN OPEN POSITION BY PRESSURE OF SAID LATCH AGAINST SAID KEEPER, SAID KEEPER BEING PIVOTED AND INCLUDING AT LEAST ONE PINTLE ON ONE SIDE THEREOF, SAID RETAINING MEANS INCLUDING AT LEAST ONE PIVOTED PLATE ENGAGEABLE BY SAID PINTLE AND A PIVOTED BAR ENGAGING SAID PLATE AND URGING IT AGAINST SAID PINTLE.
Claim 2
Dependent Claim
124 words
IN COMBINATION WITH A LOCK HAVING A LATCH WHICH IS MANUALLY RETRACTABLE FROM ONE SIDE AND ONLY KEY RETRACTABLE FROM THE OTHER SIDE, A RELEASABLE KEEPER FOR SAID LATCH MOUNTED FOR MOVEMENT TOWARDS AND AWAY FROM SAID LATCH, MEANS TO RETAIN SAID KEEPER IMMOVABLY AGAINST SAID LATCH, AND TIME-CONTROLLED MEANS OPERATIVELY CONNECTED TO SAID KEEPER RETAINING MEANS TO RELEASE THE SAME FOR A PREDETERMINED PERIOD AND PERMIT SAID KEEPER TO BE MOVABLE INTO AN OPEN POSITION BY PRESSURE OF SAID LATCH AGAINST SAID KEEPER, SAID KEEPER BEING PIVOTED AND INCLUDING AT LEAST ONE PINTLE ON ONE SIDE THEREOF, SAID RETAINING MEANS INCLUDING AT LEAST ONE PIVOTED PLATE ENGAGEABLE BY SAID PINTLE AND A PIVOTED BAR ENGAGING SAID PLATE AND URGING IT AGAINST SAID PINTLE.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |