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US2765963A
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Pump feed oil ejector can
Assignee: Individual
•
Filing: 1953-05-20
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Granted: 1956-10-09
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Expires: 1973-05-20
Abstract
No abstract record available.
Inventors
- 👤 Langguth Reinhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:39
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/0005; B05B11/0059; F; F16; F16N; F16N3/00; F16N3/02; F16N3/04; F16N3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1635245A
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US1849161A
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US2198383A
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US2369209A
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US2340479A
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US2461332A
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US2602572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |