US2183294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant
Assignee: Lubrizol Development Corp
•
Filing: 1938-01-12
•
Granted: 1939-12-12
•
Expires: 1958-01-12
Abstract
No abstract record available.
Inventors
- 👤 Bert H Lincoln
- 👤 John W Woife
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:32
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/044; C10M2211/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-12-11 | 1943-06-12 | 1943-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-12-11 | 1947-06-12 | 1947-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-12-11 | 1951-06-12 | 1951-12-12 | $7700.00 | Window Closed / Lapsed |