US2494575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined permutation and auxiliary lock for safes
Assignee: Individual
•
Filing: 1945-09-26
•
Granted: 1950-01-17
•
Expires: 1965-09-26
Abstract
No abstract record available.
Inventors
- 👤 O'brien Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:47
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/08; E05C; E05C9/00; E05C9/10; E05C9/16; E05C9/06; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5248; Y10T70/527; Y10T70/5274; Y10T70/5296; Y10T70/5319; Y10T70/5336; Y10T70/70; Y10T70/7153; Y10T70/7181; Y10T70/7198; Y10T70/7237; Y10T70/7243; Y10T70/7322; Y10T70/7328; Y10T70/7333
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US664582A
Cited
US901116A
Cited
US904302A
Cited
US1437561A
Cited
US1572449A
Cited
US1604866A
Cited
US1956304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |