US1928853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tumbler for combination locks
Assignee: Individual
•
Filing: 1932-03-04
•
Granted: 1933-10-03
•
Expires: 1952-03-04
Abstract
No abstract record available.
Inventors
- 👤 William F Doenges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:04
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/0027; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1321; Y10T24/1324; Y10T24/135; Y10T70/00; Y10T70/70; Y10T70/7153; Y10T70/7322; Y10T70/7328; Y10T70/735; Y10T70/7367
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1936-10-02 | 1937-04-03 | 1937-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-02 | 1941-04-03 | 1941-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-02 | 1945-04-03 | 1945-10-03 | $7700.00 | Window Closed / Lapsed |