Patent US3842425A successfully refreshed from Google Patents.
US1908980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock
Assignee: KEMP LOCK Inc
•
Filing: 1930-11-26
•
Granted: 1933-05-16
•
Expires: 1950-11-26
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Heyel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:22
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/12; E05B63/126; Y; Y10; Y10S; Y10S70/00; Y10S70/39; Y10S70/42; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0837; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5248; Y10T70/527; Y10T70/5279; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/5456; Y10T70/546; Y10T70/5465; Y10T70/5469; Y10T70/5473
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) | 1936-05-15 | 1936-11-14 | 1937-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-15 | 1940-11-14 | 1941-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-15 | 1944-11-14 | 1945-05-16 | $7700.00 | Window Closed / Lapsed |