US2504906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite metal electric contact member
Assignee: Westinghouse Electric Corp
•
Filing: 1945-08-10
•
Granted: 1950-04-18
•
Expires: 1965-08-10
Abstract
No abstract record available.
Inventors
- 👤 Bernard G Tremblay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:24
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/02; H01H11/00; H01H11/04; H01H11/041; H01H2011/046; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12042; Y10T428/12063; Y10T428/1209; Y10T428/12139; Y10T428/12472; Y10T428/12493; Y10T428/12639; Y10T428/12646; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12833; Y10T428/12861; Y10T428/12882; Y10T428/12896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US87422A
Cited
US549736A
Cited
US636114A
Cited
US1607582A
Cited
US1714879A
Cited
US2299000A
Cited
US2390595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-17 | 1953-10-17 | 1954-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-17 | 1957-10-17 | 1958-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-17 | 1961-10-17 | 1962-04-18 | $7700.00 | Window Closed / Lapsed |