US2342431A
Expired / Lapsed
US
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Mineral oil lubricating composition and an improvement agent therefor and its method of preparation
Assignee: Gulf Oil Corp
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Filing: 1941-12-22
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Granted: 1944-02-22
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Expires: 1961-12-22
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:56
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/123; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/18; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/12; C10M2223/121; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253; C10N2070/00; C10N2070/02
Claims Analysis
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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) | 1947-02-21 | 1947-08-23 | 1948-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-21 | 1951-08-23 | 1952-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-21 | 1955-08-23 | 1956-02-22 | $7700.00 | Window Closed / Lapsed |