US2918082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulating device
Assignee: HD Hudson Manufacturing Co
•
Filing: 1955-02-21
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Granted: 1959-12-22
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Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 August H Pinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:03
CPC Classifications
F; F16; F16K; F16K17/00; B; B05; B05B; B05B12/00; B05B12/08; B05B12/085; B05B12/087; B05B12/088; B05B9/00; B05B9/03; B05B9/04; B05B9/08; B05B9/0805; B05B9/0811; B05B9/0816; G; G05; G05D; G05D16/00; G05D16/04; G05D16/0402; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7826; Y10T137/7835; Y10T137/7836; Y10T137/8593; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US305966A
Cited
US2447695A
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US1465654A
Cited
US1603112A
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GB431890A
Cited
US2053931A
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US2150460A
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US2768643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |