US2528535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid lubricating composition
Assignee: Individual
•
Filing: 1946-08-13
•
Granted: 1950-11-07
•
Expires: 1966-08-13
Abstract
No abstract record available.
Inventors
- 👤 Robert L Merker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
C; C10; C10M; C10M111/00; C10M111/04; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/289; C10M2207/30; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/05; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/06; C10N2040/12; C10N2040/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF A BLEND OF AN ORGANO-SILOXANE HAVING AS ITS CHAIN STRUCTURE:
Claim 2
Dependent Claim
16 words
A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF A BLEND OF AN ORGANO-SILOXANE HAVING AS ITS CHAIN STRUCTURE:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |