US2313248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulphur containing lubricant
Assignee: Lubrizol Development Corp
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Filing: 1940-01-12
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Granted: 1943-03-09
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Expires: 1960-01-12
Abstract
No abstract record available.
Inventors
- 👤 Bert H Lincoln
- 👤 Waldo L Steiner
- 👤 Gordon D Byrkit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:29
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M135/04; C10M2207/00; C10M2207/40; C10M2207/404; C10M2219/00; C10M2219/02; C10M2219/022; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/04; C10N; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/20; C10N2040/22
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) | 1946-03-08 | 1946-09-07 | 1947-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-08 | 1950-09-07 | 1951-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-08 | 1954-09-07 | 1955-03-09 | $7700.00 | Window Closed / Lapsed |