US2214152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil composition
Assignee: Carbide and Carbon Chemicals Corp
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Filing: 1938-02-18
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Granted: 1940-09-10
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Expires: 1958-02-18
Abstract
No abstract record available.
Inventors
- 👤 Wilkes Benjamin Garrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:21
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/432; C; C09; C09K; C09K23/00; C09K23/16; D06M13/35; D06M7/00; C10; C10M; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/10; C10M2203/102; C10M2215/00; C10M2215/22; C10M2215/223; C10M2215/224; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/46; D06M2200/00; D06M2200/40
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) | 1943-09-10 | 1944-03-11 | 1944-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-10 | 1948-03-11 | 1948-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-10 | 1952-03-11 | 1952-09-10 | $7700.00 | Window Closed / Lapsed |