Patent US2900917A successfully refreshed from Google Patents.
US2900917A
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US
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Pneumatic oil pumping device
Assignee: Garrett Corp
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Filing: 1956-05-22
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Granted: 1959-08-25
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Expires: 1976-05-22
Abstract
No abstract record available.
Inventors
- 👤 Roy L Schinnerer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:38
CPC Classifications
F; F16; F16N; F16N13/00; F16N13/02; F16N13/06; F16N13/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |