US2996455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High viscosity index, low viscosity, low volatility motor oil
Assignee: Standard Oil Co
•
Filing: 1956-12-28
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Granted: 1961-08-15
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Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Brown
- 👤 Jones Arthur Letcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:06
CPC Classifications
C; C10; C10G; C10G31/00; C10G31/06; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/102; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/04; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2217/00; C10M2217/02; C10M2217/022; C10M2217/023; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2492789A
Cited
US2694685A
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US2489281A
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US2541070A
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US2541071A
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US2756197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |