US2343756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant
Assignee: EIDP Inc
•
Filing: 1942-04-23
•
Granted: 1944-03-07
•
Expires: 1962-04-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Downing
- 👤 Howard M Fitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:50
CPC Classifications
C; C10; C10M; C10M163/00; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/38; C10M129/56; C10M129/58; C10M135/00; C10M135/12; C10M135/14; C10M135/18; C10M135/20; C10M137/00; C10M137/02; C10M137/04; C10M137/06; C10M137/12; C10M141/00; C10M159/00; C10M159/12; C10M159/18; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/08; C10M2207/09; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/22; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/14; C10M2215/24; C10M2215/26; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/085; C10M2219/086; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/06; C10M2223/061; C10M2223/065; C10M2227/00; C10M2227/09; C10N; C10N2010/00; C10N2010/02
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) | 1947-03-07 | 1947-09-06 | 1948-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-07 | 1951-09-06 | 1952-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-07 | 1955-09-06 | 1956-03-07 | $7700.00 | Window Closed / Lapsed |