US2434604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switchgear apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1943-12-11
•
Granted: 1948-01-13
•
Expires: 1963-12-11
Abstract
No abstract record available.
Inventors
- 👤 Charles P West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:00
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/30; H01R4/36; H01R4/363; H02; H02B; H02B11/00; H02B11/02; H02B11/04; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44573; Y10T24/4459; Y10T24/44598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US970087A
Cited
US1531917A
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US1783062A
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US1741804A
Cited
US2031296A
Cited
US2086424A
Cited
US2287762A
Cited
US2232602A
Cited
US2308528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-12 | 1951-07-14 | 1952-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-12 | 1955-07-14 | 1956-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-12 | 1959-07-14 | 1960-01-13 | $7700.00 | Window Closed / Lapsed |