US2741333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil purification
Assignee: Motors Liquidation Co
•
Filing: 1950-07-12
•
Granted: 1956-04-10
•
Expires: 1970-07-12
Abstract
No abstract record available.
Inventors
- 👤 Robert L Dega
- 👤 Worth H Percival
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:57
CPC Classifications
F; F16; F16N; F16N13/00; F16N13/20; F16N39/00; F16N39/06; Y; Y10; Y10S; Y10S494/00; Y10S494/901
Claims Analysis
Total Claims: 0
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US2239447A
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US2519971A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |