US1392160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1917-07-06
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Granted: 1921-09-27
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Expires: 1937-07-06
Abstract
No abstract record available.
Inventors
- 👤 Oliver P Hipple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:44
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/60; H01H19/62; H01H19/63
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) | 1924-09-26 | 1925-03-28 | 1925-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-09-26 | 1929-03-28 | 1929-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-09-26 | 1933-03-28 | 1933-09-27 | $7700.00 | Window Closed / Lapsed |