US2666321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door lock
Assignee: Adams Rite Manufacturing Co
•
Filing: 1950-11-13
•
Granted: 1954-01-19
•
Expires: 1970-11-13
Abstract
No abstract record available.
Inventors
- 👤 Frank R Collar
- 👤 Earle D Grizzard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:41
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/0017; E05B63/0021; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5341; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US668188A
Cited
US1042508A
Cited
US1255106A
Cited
US1464473A
Cited
CH163227A
Cited
CH159897A
Cited
US1942087A
Cited
AT142527B
Cited
FR789929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |