US2914295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relief valve
Assignee: Studebaker Packard Corp
•
Filing: 1954-09-10
•
Granted: 1959-11-24
•
Expires: 1974-09-10
Abstract
No abstract record available.
Inventors
- 👤 Julius E Witzky
- 👤 Raymond R Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:43
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F16; F16K; F16K24/00; F16K24/04; F02B2075/1804; F02B2075/1832
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US476957A
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CH12684A
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CH18869A
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US1238221A
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FR480609A
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FR20164E
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US1400488A
Cited
US1276325A
Cited
US1890584A
Cited
US1678927A
Cited
US2369669A
Cited
US2748798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |