Patent US2580775A successfully refreshed from Google Patents.
US2962889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency-exit lock
Assignee: Emhart Industries Inc
•
Filing: 1958-01-23
•
Granted: 1960-12-06
•
Expires: 1978-01-23
Abstract
No abstract record available.
Inventors
- 👤 Frank J Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:22
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/10; E05B65/1046; E05B65/106; E05B65/1066; E05B63/00; E05B63/04; E05B65/1093; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0908; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1075; Y10T292/1083; Y10T292/1089; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5159; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5496
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US450669A
Cited
US789775A
Cited
US1154573A
Cited
US1434080A
Cited
US1846183A
Cited
US1894555A
Cited
US2074191A
Cited
US2333861A
Cited
US2724258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |