US2491337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pickproof lock
Assignee: Individual
•
Filing: 1946-11-30
•
Granted: 1949-12-13
•
Expires: 1966-11-30
Abstract
No abstract record available.
Inventors
- 👤 Segal May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:30
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/14; E05B27/00; E05B19/00; E05B19/0017; E05B19/0041; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7932; Y10T70/7989; Y10T70/80; Y10T70/8432; Y10T70/8649
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |