US2776086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid compressor or pump
Assignee: Individual
•
Filing: 1952-03-18
•
Granted: 1957-01-01
•
Expires: 1972-03-18
Abstract
No abstract record available.
Inventors
- 👤 Irving H Selden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:02
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/36; F01; F01C; F01C1/00; F01C1/08; F01C1/12; F01C1/14; F01C1/20; F01C1/30; F01C1/40; F01C1/46; F01C11/00; F03; F03C; F03C2/00; F03C2/08; F04C18/00; F04C18/30; F04C18/36; F04C18/08; F04C18/12; F04C18/14; F04C18/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US87023A
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US137056A
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US801373A
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US888814A
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US1404717A
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CH178861A
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US2407753A
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US2383194A
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US2418793A
Cited
US2603412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |