Patent US2365291A successfully refreshed from Google Patents.
US2365291A
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Stabilizing agents for hydrocarbon compositions and the like
Assignee: Lubrizol Corp
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Filing: 1941-05-26
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Granted: 1944-12-19
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Expires: 1961-05-26
Abstract
No abstract record available.
Inventors
- 👤 Carl F Prutton
- 👤 Albert K Smith
- 👤 Delton R Frey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:06
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0071; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2691; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/40; C10M2207/404; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/12
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) | 1947-12-19 | 1948-06-19 | 1948-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-19 | 1952-06-19 | 1952-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-19 | 1956-06-19 | 1956-12-19 | $7700.00 | Window Closed / Lapsed |