US1070329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-combination key for safety-locks.
Assignee: Individual
•
Filing: 1911-04-01
•
Granted: 1913-08-12
•
Expires: 1931-04-01
Abstract
No abstract record available.
Inventors
- 👤 Leon Joseph Mathurin Dardeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:22
CPC Classifications
E; E05; E05B; E05B19/00; E05B19/18; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7881; Y10T70/7893
Claims Analysis
Total Claims: 0
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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) | 1916-08-11 | 1917-02-10 | 1917-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-08-11 | 1921-02-10 | 1921-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-08-11 | 1925-02-10 | 1925-08-12 | $7700.00 | Window Closed / Lapsed |