US2882830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distortionable chamber pump
Assignee: Motors Liquidation Co
•
Filing: 1957-06-06
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Granted: 1959-04-21
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Expires: 1977-06-06
Abstract
No abstract record available.
Inventors
- 👤 Archie D Mcduffie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:15
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/086; F02; F02M; F02M1/00; F04B1/00; F04B1/12; F04B1/20; F04B43/0009; F04B43/0045; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4388; F02M2700/439
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) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |