US2887058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricated pump construction
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1953-05-29
•
Granted: 1959-05-19
•
Expires: 1973-05-29
Abstract
No abstract record available.
Inventors
- 👤 Leslie L Aspelin
- 👤 John F Murray
- 👤 Donald L Lorenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:49
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F04C11/00; F04C11/001; F04C15/00; F04C15/0088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1379587A
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US1617986A
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US2281302A
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US2286301A
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US2505191A
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US2639694A
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US2726604A
Cited
US2724335A
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US2676548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |