US2492009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient stop and position limiting means for circuit interrupters
Assignee: Westinghouse Electric Corp
•
Filing: 1943-12-11
•
Granted: 1949-12-20
•
Expires: 1963-12-11
Abstract
No abstract record available.
Inventors
- 👤 Sandin Jerome
- 👤 Lindstrom Ture
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:12
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1054; H01H71/50; H01H71/52; H01H71/522; H01H71/525; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1892008A
Cited
US1459494A
Cited
US1512235A
Cited
US1501148A
Cited
US2015633A
Cited
US2050285A
Cited
US2134565A
Cited
US2255115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |