Patent US2910313A successfully refreshed from Google Patents.
US2910313A
Expired / Lapsed
US
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Lubricated seal for centrifugal pump shafts
Assignee: Individual
•
Filing: 1958-11-24
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Granted: 1959-10-27
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Expires: 1978-11-24
Abstract
No abstract record available.
Inventors
- 👤 Bour Harry E La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:06
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F04D29/128; F04D7/00; F04D7/02; F04D7/06; F16J15/3496
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1815096A
Cited
US2023898A
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US2043885A
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US2066505A
Cited
US2108760A
Cited
US2220771A
Cited
US2331641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |