Patent US6307368B1 successfully refreshed from Google Patents.
Patent US1240981A successfully refreshed from Google Patents.
US1240981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyless lock.
Assignee: Individual
•
Filing: 1913-12-05
•
Granted: 1917-09-25
•
Expires: 1933-12-05
Abstract
No abstract record available.
Inventors
- 👤 Eduard Franz Kohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:15
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/12; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5248; Y10T70/5252; Y10T70/60; Y10T70/625; Y10T70/65; Y10T70/70; Y10T70/7153; Y10T70/7181; Y10T70/7198; Y10T70/7237; Y10T70/726
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) | 1920-09-24 | 1921-03-26 | 1921-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-09-24 | 1925-03-26 | 1925-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-09-24 | 1929-03-26 | 1929-09-25 | $7700.00 | Window Closed / Lapsed |