US1707215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mortise knob lock
Assignee: FRANK E BEST Inc
•
Filing: 1925-02-11
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Granted: 1929-04-02
•
Expires: 1945-02-11
Abstract
No abstract record available.
Inventors
- 👤 Best Frank Ellison
- 👤 Powell Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:16
CPC Classifications
E; E05; E05B; E05B59/00; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5226; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/542; Y10T70/5442
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) | 1932-04-01 | 1932-10-01 | 1933-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-04-01 | 1936-10-01 | 1937-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-04-01 | 1940-10-01 | 1941-04-02 | $7700.00 | Window Closed / Lapsed |