Patent US4604851A successfully refreshed from Google Patents.
Patent US3187528A successfully refreshed from Google Patents.
US3187528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-tamper keyless lock
Assignee: Yale and Towne Inc
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Filing: 1962-07-13
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Granted: 1965-06-08
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Expires: 1982-07-13
Abstract
No abstract record available.
Inventors
- 👤 Mathias M Check
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:42
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/16; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7153; Y10T70/7158; Y10T70/7164; Y10T70/7181; Y10T70/7198; Y10T70/7215; Y10T70/7226
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
87 words
IN A COMBINATION LOCK, A SERIES OF LOCKING PARTS, A SERIES OF PUSH BUTTONS FOR MOVING SAID LOCKING PARTS TO LOCKING POSITIONS AS SAID PUSH BUTTONS ARE DEPRESSED, MEANS FOR HOLDING SAID LOCKING PARTS IN LOCKING POSITION WHEN SO POSITIONED BY SAID PUSH BUTTONS, SPRING MEANS RETURNING SAID PUSH BUTTONS FROM DEPRESSED POSITION TO AN OUTWARD POSITION, DETENT MEANS FOR LOCKING ALL OF SAID PUSH BUTTONS AGAINST DEPRESSION, AND MEANS FOR RELEASING SAID LOCKING PARTS FROM SAID HOLDING MEANS AND SAID PUSH BUTTONS FROM SAID DETENT MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |