US1246394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus.
Assignee: Westinghouse Electric Corp
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Filing: 1914-03-21
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Granted: 1917-11-13
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Expires: 1934-03-21
Abstract
No abstract record available.
Inventors
- 👤 Ora A Colby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:53
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/0076; F02M37/0088; F17; F17C; F17C2205/00; F17C2205/01; F17C2205/0123; F17C2205/013; F17C2205/0134; F17C2205/0142; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/8593; Y10T137/86236; Y10T137/86928; Y10T137/87016; Y10T137/877; Y10T137/87708; Y10T137/8778
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1920-11-12 | 1921-05-14 | 1921-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-11-12 | 1925-05-14 | 1925-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-11-12 | 1929-05-14 | 1929-11-13 | $7700.00 | Window Closed / Lapsed |