US2629793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic timing relay
Assignee: Westinghouse Electric Corp
•
Filing: 1949-01-19
•
Granted: 1953-02-24
•
Expires: 1969-01-19
Abstract
No abstract record available.
Inventors
- 👤 John C Ponstingl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:11
CPC Classifications
G; G04; G04F; G04F1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB490610A
Cited
US830537A
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US1217469A
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US1364980A
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US1526015A
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US2103378A
Cited
US2029137A
Cited
US2123382A
Cited
US2158346A
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US2360856A
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US2538038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |