Patent US3451703A successfully refreshed from Google Patents.
US3451703A
Expired / Lapsed
US
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Tamperproof slide lock for doors
Assignee: CHARLES D ROEGNER
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Filing: 1967-07-07
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Granted: 1969-06-24
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Expires: 1987-07-07
Abstract
No abstract record available.
Inventors
- 👤 Charles D Roegner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:49
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/02; E05C1/04; E05B; E05B67/00; E05B67/38; E05B67/383; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1025; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2198079A
Cited
FR853639A
Cited
US2468406A
Cited
US2482341A
Cited
US2974987A
Cited
US3334933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |