Patent US2684631A successfully refreshed from Google Patents.
US2684631A
Expired / Lapsed
US
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Pump and valve assembly
Assignee: ANTHONY
•
Filing: 1951-05-07
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Granted: 1954-07-27
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Expires: 1971-05-07
Abstract
No abstract record available.
Inventors
- 👤 William C Anthony
- 👤 Glenn S Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:08
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F04C14/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2131968A
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US2123815A
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US2119740A
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US2256743A
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US2310078A
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US2292331A
Cited
US2432004A
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US2433954A
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US2483019A
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US2433918A
Cited
US2456651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |