US2748210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switches
Assignee: Westinghouse Electric Corp
•
Filing: 1952-03-19
•
Granted: 1956-05-29
•
Expires: 1972-03-19
Abstract
No abstract record available.
Inventors
- 👤 Stanley L Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:47
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/28; H01H9/285
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1839171A
Cited
US803486A
Cited
US1008000A
Cited
US1244671A
Cited
US1519966A
Cited
US1796976A
Cited
US1856407A
Cited
US1889175A
Cited
US2113756A
Cited
US2303516A
Cited
US2568933A
Cited
US2357971A
Cited
US2441888A
Cited
US2498614A
Cited
US2517506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |