US2638770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hotel lock
Assignee: Independent Lock Co
•
Filing: 1949-01-28
•
Granted: 1953-05-19
•
Expires: 1969-01-28
Abstract
No abstract record available.
Inventors
- 👤 Gutman Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:48
CPC Classifications
E; E05; E05B; E05B41/00; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5226; Y10T70/80; Y10T70/8027; Y10T70/8189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1152443A
Cited
US1264583A
Cited
US1454020A
Cited
US1604947A
Cited
US1585105A
Cited
US1855608A
Cited
US2029991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |