Patent US2929331A successfully refreshed from Google Patents.
US2929331A
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US
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Temperature compensated bearings for gear pumps
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1957-01-11
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Granted: 1960-03-22
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Expires: 1977-01-11
Abstract
No abstract record available.
Inventors
- 👤 Donald L Lorenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:38
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/02; F04; F04C; F04C2/00; F04C2/08; F04C2/082; F04C2/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US873097A
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GB190824495A
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US929762A
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US1298448A
Cited
US2420622A
Cited
US2701743A
Cited
US2708884A
Cited
US2789512A
Cited
US2696172A
Cited
US2730960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-22 | 1963-09-21 | 1964-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-22 | 1967-09-21 | 1968-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-22 | 1971-09-21 | 1972-03-22 | $7700.00 | Window Closed / Lapsed |