US2791968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-priming centrifugal pump
Assignee: Gorman Rupp Co
•
Filing: 1953-09-08
•
Granted: 1957-05-14
•
Expires: 1973-09-08
Abstract
No abstract record available.
Inventors
- 👤 Warren E Rupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:10
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/004; F04D9/005; F04D9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE61217C
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DE214801C
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US1068365A
Cited
CH134165A
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GB345973A
Cited
US2240128A
Cited
US2287397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |