US2653753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor regulator
Assignee: Individual
•
Filing: 1946-12-19
•
Granted: 1953-09-29
•
Expires: 1966-12-19
Abstract
No abstract record available.
Inventors
- 👤 Paul H Davey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:42
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/02; F04B49/022; F04B49/10; F04B49/106; F04B49/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2559; Y10T137/265; Y10T137/2657; Y10T137/266; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE238693C
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GB109421A
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DE513330C
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US779623A
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US1017509A
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US1154467A
Cited
US1222352A
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US1419316A
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US1910202A
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US2171285A
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US2539430A
Cited
US2378802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |