Patent US2666041A successfully refreshed from Google Patents.
US2666041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone rubbers with improved compression set
Assignee: General Electric Co
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Filing: 1952-04-03
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Granted: 1954-01-12
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Expires: 1972-04-03
Abstract
No abstract record available.
Inventors
- 👤 Charles W Pfeifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:27
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A CURABLE COMPOSITION OF MATTER COMPRISING (1) AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE, THE ORGANIC RADICALS OF THE AFORESAID ORGANOPOLYSILOXANE BEING HYDROCARBON RADICALS ATTACHED TO SILICON BY CARBON-SILICON LINKAGES, AND (2) FROM 0.25 TO 10 PERCENT, BY WEIGHT, OF AN ADDITIVE SELECTED FROM THE CLASS CONSISTING OF QUINONES, NAPHTHOQUINONES, ALKYLATED QUINONES, HALOGENATED QUINONES, ALKYLATED NAPHTHOQUINONES, HALOGENATED NAPHTHOQUINONES, AND HYDROCARBON MONOETHERS OF HYDROQUINONE, THE AFORESAID WEIGHT OF THE ADDITIVE BEING BASED ON THE WEIGHT OF THE ORGANOPOLYSILOXANE.
Claim 2
Dependent Claim
79 words
A CURABLE COMPOSITION OF MATTER COMPRISING (1) AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE, THE ORGANIC RADICALS OF THE AFORESAID ORGANOPOLYSILOXANE BEING HYDROCARBON RADICALS ATTACHED TO SILICON BY CARBON-SILICON LINKAGES, AND (2) FROM 0.25 TO 10 PERCENT, BY WEIGHT, OF AN ADDITIVE SELECTED FROM THE CLASS CONSISTING OF QUINONES, NAPHTHOQUINONES, ALKYLATED QUINONES, HALOGENATED QUINONES, ALKYLATED NAPHTHOQUINONES, HALOGENATED NAPHTHOQUINONES, AND HYDROCARBON MONOETHERS OF HYDROQUINONE, THE AFORESAID WEIGHT OF THE ADDITIVE BEING BASED ON THE WEIGHT OF THE ORGANOPOLYSILOXANE.
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) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |