Patent US2967490A successfully refreshed from Google Patents.
US2967490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump and the like
Assignee: Individual
•
Filing: 1957-10-29
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Granted: 1961-01-10
•
Expires: 1977-10-29
Abstract
No abstract record available.
Inventors
- 👤 Soden Adolph F Graf Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:11
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/04; F04B27/0404; F04B27/0409; F04B1/00; F04B1/04; F04B1/06; F04B1/07; F04B27/06; F04B27/0606; F04B27/0612; F04B27/0619; F04B49/00; F04B49/12; F04B49/123; F04B49/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1763565A
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US1889352A
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US2083808A
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US2284139A
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US2392754A
Cited
US2349280A
Cited
US2343244A
Cited
GB652092A
Cited
US2485753A
Cited
GB745741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |