Patent US2340073A successfully refreshed from Google Patents.
US2340073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil
Assignee: Cities Service Oil Co
•
Filing: 1942-03-02
•
Granted: 1944-01-25
•
Expires: 1962-03-02
Abstract
No abstract record available.
Inventors
- 👤 John D Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:11
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/10; C10M2207/16; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10N; C10N2010/00; C10N2010/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1947-01-24 | 1947-07-26 | 1948-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-24 | 1951-07-26 | 1952-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-24 | 1955-07-26 | 1956-01-25 | $7700.00 | Window Closed / Lapsed |