Patent US2625883A successfully refreshed from Google Patents.
US2625883A
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Centrifugal pump drive and seal means
Assignee: Individual
•
Filing: 1951-01-25
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Granted: 1953-01-20
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Expires: 1971-01-25
Abstract
No abstract record available.
Inventors
- 👤 Julia M Howser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:56
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/04; F04D29/043; F04D29/044; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F16; F16D; F16D3/00; F16D3/02; F16D3/06; Y; Y10; Y10S; Y10S277/00; Y10S277/911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2371250A
Cited
US1008317A
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US1324063A
Cited
DE325822C
Cited
US2047330A
Cited
GB494469A
Cited
US2150078A
Cited
US2388456A
Cited
US2439315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |