US2999835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous mixture comprising organo-polysiloxane and polymer of a carbonate of a dihydric phenol, and products containing same
Assignee: General Electric Co
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Filing: 1959-01-02
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Granted: 1961-09-12
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Expires: 1979-01-02
Abstract
No abstract record available.
Inventors
- 👤 Eugene P Goldberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:37
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/448; C08G64/00; C08G64/18; C08G64/186; C08L; C08L69/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A RESINOUS MIXTURE COMPRISING, BY WEIGHT, FROM ABOUT 0.1% TO 20% ORGANOPOLYSILOXANE AND A POLYNER OF A CARBONATE OF A DIHYDRIC PHENOL IN WHICH THE CARBONATE GROUP IS ATTACHED DIRECTLY TO A CARBON ATOM OF ON AROMATIC RING, THE WEIGHT OF SAID ORGANOPOLYSILOXANE BEING BASED ON THE WEIGHT OF THE CARBONATE POLYMER.
Claim 2
Dependent Claim
52 words
A RESINOUS MIXTURE COMPRISING, BY WEIGHT, FROM ABOUT 0.1% TO 20% ORGANOPOLYSILOXANE AND A POLYNER OF A CARBONATE OF A DIHYDRIC PHENOL IN WHICH THE CARBONATE GROUP IS ATTACHED DIRECTLY TO A CARBON ATOM OF ON AROMATIC RING, THE WEIGHT OF SAID ORGANOPOLYSILOXANE BEING BASED ON THE WEIGHT OF THE CARBONATE POLYMER.
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) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |