Patent US2859202A successfully refreshed from Google Patents.
US2859202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siloxane comprising 2, 5-dimethyl-2, 5-dihydroperoxy hexane
Assignee: General Electric Co
•
Filing: 1957-04-10
•
Granted: 1958-11-04
•
Expires: 1977-04-10
Abstract
No abstract record available.
Inventors
- 👤 William J Bobear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/14; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2915; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T442/00; Y10T442/20; Y10T442/2475
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A POROUS SHEET MATERIAL COATED AND IMPREGNATED WITH A COMPOSITION COMPRISING (1) AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE CONSISTING OF FROM ABOUT 75 TO 99.9 MOL PERCENT LOWER ALKYL GROUPS AND FROM ABOUT 0.1 TO 0.6 MOL PERCENT VINYL GROUPS, ANY OTHER ORGANIC GROUPS PRESENT IN THE AFORESAID ORGANOPOLYSILOXANE BEING SELECTED FROM THE CLASS CONSISTING OF ARYL GROUPS, HALOGENATED ARYL GROUPS, AND MIXTURES THEREOF, THE TOTAL MOLAR CONCENTRATION OF ORGANIC GROUPS BEING EQUAL TO 100 PERCENT, ALL THE ORGANIC GROUPS BEING ATTACHED TO SILICON BY CARBON-SILICON LINKAGES, THERE BEING PRESENT AN AVERAGE OF FROM 1.95 TO 2.1 ORGANIC GROUPS PER SILICON ATOM (2) A FILLER AND (3) A SEMI-CURING AGENT FOR (1) CONSISTING OF FROM 1 TO 10 PERCENT OF 2,5-DIMETHYL-2,5-DIHYDROPEROXY HEXANE BASED ON THE WEIGHT OF (1).
Claim 2
Dependent Claim
131 words
A POROUS SHEET MATERIAL COATED AND IMPREGNATED WITH A COMPOSITION COMPRISING (1) AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE CONSISTING OF FROM ABOUT 75 TO 99.9 MOL PERCENT LOWER ALKYL GROUPS AND FROM ABOUT 0.1 TO 0.6 MOL PERCENT VINYL GROUPS, ANY OTHER ORGANIC GROUPS PRESENT IN THE AFORESAID ORGANOPOLYSILOXANE BEING SELECTED FROM THE CLASS CONSISTING OF ARYL GROUPS, HALOGENATED ARYL GROUPS, AND MIXTURES THEREOF, THE TOTAL MOLAR CONCENTRATION OF ORGANIC GROUPS BEING EQUAL TO 100 PERCENT, ALL THE ORGANIC GROUPS BEING ATTACHED TO SILICON BY CARBON-SILICON LINKAGES, THERE BEING PRESENT AN AVERAGE OF FROM 1.95 TO 2.1 ORGANIC GROUPS PER SILICON ATOM (2) A FILLER AND (3) A SEMI-CURING AGENT FOR (1) CONSISTING OF FROM 1 TO 10 PERCENT OF 2,5-DIMETHYL-2,5-DIHYDROPEROXY HEXANE BASED ON THE WEIGHT OF (1).
References Cited (Backward Citations)
US2789155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |