US2561178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organopolysiloxanes
Assignee: General Electric Co
•
Filing: 1949-07-28
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Granted: 1951-07-17
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Expires: 1969-07-28
Abstract
No abstract record available.
Inventors
- 👤 Charles A Burkhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:38
CPC Classifications
C; C10; C10M; C10M3/00; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/70; C10M2227/00; C10M2227/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/05; C10N; C10N2020/00; C10N2020/01; Y; Y10; Y10S; Y10S8/00; Y10S8/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A COMPOSITON OF MATTER COMPRISING (1) A MAJOR PROPORTION OF A LIQUID ORGANO-SUBSTITUTED POLYSILOXANE AND (2) FROM 0.5 TO 10%, BY WEIGHT, BASED ON THE WEIGHT OF (1), OF A LUBRICITY ADDITIVE COMPRISING A COMPOUND CORRESPONDING TO THE GENERAL FORMULA
Claim 2
Dependent Claim
40 words
A COMPOSITON OF MATTER COMPRISING (1) A MAJOR PROPORTION OF A LIQUID ORGANO-SUBSTITUTED POLYSILOXANE AND (2) FROM 0.5 TO 10%, BY WEIGHT, BASED ON THE WEIGHT OF (1), OF A LUBRICITY ADDITIVE COMPRISING A COMPOUND CORRESPONDING TO THE GENERAL FORMULA
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) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |