Patent US2249764A successfully refreshed from Google Patents.
US2249764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device
Assignee: Primerica Inc
•
Filing: 1938-07-09
•
Granted: 1941-07-22
•
Expires: 1958-07-09
Abstract
No abstract record available.
Inventors
- 👤 John M Hothersall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:59
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/50; B65D71/502; B65D63/00; B65D63/02; B65D63/04; Y; Y10; Y10S; Y10S206/00; Y10S206/821; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/148
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) | 1944-07-21 | 1945-01-20 | 1945-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-21 | 1949-01-20 | 1949-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-21 | 1953-01-20 | 1953-07-22 | $7700.00 | Window Closed / Lapsed |