Patent US2189873A successfully refreshed from Google Patents.
US2189873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease and method of making same
Assignee: Standard Oil Development Co
•
Filing: 1938-04-07
•
Granted: 1940-02-13
•
Expires: 1958-04-07
Abstract
No abstract record available.
Inventors
- 👤 John C Zimmer
- 👤 Arnold J Merway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:32
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/043; C10M2201/05; C10M2201/06; C10M2201/061; C10M2201/062; C10M2201/10; C10M2201/102; C10M2201/16; C10M2201/18; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/16; C10M2205/20; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/102; C10M2209/103; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2040/00; C10N2040/46; C10N2050/00; C10N2050/10; C10N2060/00; C10N2060/04
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) | 1943-02-12 | 1943-08-14 | 1944-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-12 | 1947-08-14 | 1948-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-12 | 1951-08-14 | 1952-02-13 | $7700.00 | Window Closed / Lapsed |