US1548098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder relief valve
Assignee: Pennsylvania Pump & Compressor
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Filing: 1925-01-02
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Granted: 1925-08-04
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Expires: 1945-01-02
Abstract
No abstract record available.
Inventors
- 👤 Raymond Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:17
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/22; F04B49/24; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7935; Y10T137/8593; Y10T137/87917; Y10T137/88046; Y10T137/88054; Y10T137/88062
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) | 1928-08-03 | 1929-02-02 | 1929-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-03 | 1933-02-02 | 1933-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-03 | 1937-02-02 | 1937-08-04 | $7700.00 | Window Closed / Lapsed |