US2671069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gamma alumina filled silicone rubber
Assignee: General Electric Co
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Filing: 1952-06-24
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Granted: 1954-03-02
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Expires: 1972-06-24
Abstract
No abstract record available.
Inventors
- 👤 Richard M Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:32
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/14; C08G77/16; C08G77/20; C08G77/70; C08L2666/00; C08L2666/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A CURED SOLID, ELASTIC HYDROCARBON-SUB SITUTED POLYSILOXANE CONTAINING AN AVERAGE OF FROM 1.95 TO 2.25 HYDROCARBON GROUPS PER SILICON ATOM CONTAINING AS A FILLER A FINELY DIVIDED GAMMA ALUMINA OF AVERAGE PARTICLES SIZE LESS THAN 100 MILLIMICRONS IN WHICH THE FILLER IS PRESENT, BY WEIGHT, IN AN AMOUNT EQUAL TO FROM 0.1 TO 2 PARTS OF THE LATTER PER PART OF HYDROCARBON-SUBSTITUTED POLYSILOXANE.
Claim 2
Dependent Claim
63 words
A CURED SOLID, ELASTIC HYDROCARBON-SUB SITUTED POLYSILOXANE CONTAINING AN AVERAGE OF FROM 1.95 TO 2.25 HYDROCARBON GROUPS PER SILICON ATOM CONTAINING AS A FILLER A FINELY DIVIDED GAMMA ALUMINA OF AVERAGE PARTICLES SIZE LESS THAN 100 MILLIMICRONS IN WHICH THE FILLER IS PRESENT, BY WEIGHT, IN AN AMOUNT EQUAL TO FROM 0.1 TO 2 PARTS OF THE LATTER PER PART OF HYDROCARBON-SUBSTITUTED POLYSILOXANE.
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) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |