US2801593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump
Assignee: Geo D Roper Corp
•
Filing: 1954-05-03
•
Granted: 1957-08-06
•
Expires: 1974-05-03
Abstract
No abstract record available.
Inventors
- 👤 Bruce H Moshacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:34
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0034; F04C15/0038; F04C15/0057; F04C15/0061; F04C2/00; F04C2/08; F04C2/12; F04C2/14; F04C2/18; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2193273A
Cited
US2279136A
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US2391577A
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US2379868A
Cited
US2558970A
Cited
US2633807A
Cited
US2481452A
Cited
US2649740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |