US3377309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primer compositions and a method of making them
Assignee: Dow Silicones Corp
•
Filing: 1963-01-07
•
Granted: 1968-04-09
•
Expires: 1983-01-07
Abstract
No abstract record available.
Inventors
- 👤 Jack R Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C08G77/22; C08G77/24; C08G77/70; C09; C09D; C09D183/00; C09D183/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A COMPOSITION CONSISTING ESSENTIALLY OF 1 TO 75 PERCENT BY WEIGHT OF A PHENYL-CONTAINING SILOXANE RESIN WHICH IS A COPOLYMER THAT CONSISTS ESSENTIALLY OF PHENYL AND METHYLSILOXANE UNITS AND HAS A PHENYL TO SILICON RATION IN THE RANGE OF .1:1 TO 1:1, A METHYL TO SILICON RATION IN THE RANGE OF .6:1 TO 1.1:1 AND THE TOTAL OF THE PHENYL AND METHYL TO SILICON RATIO BEING IN THE RANGE OF .8:1 TO 1.8:1, 0.1 TO 10 PERCENT BY WEIGHT OF AN ALKYLSILICATE, 0.01 TO 2 PERCENT BY WEIGHT OF A CHLOROSILANE AND THE BALANCE BEING A NON-HALOGENATED SOLVENT.
Claim 2
Dependent Claim
98 words
A COMPOSITION CONSISTING ESSENTIALLY OF 1 TO 75 PERCENT BY WEIGHT OF A PHENYL-CONTAINING SILOXANE RESIN WHICH IS A COPOLYMER THAT CONSISTS ESSENTIALLY OF PHENYL AND METHYLSILOXANE UNITS AND HAS A PHENYL TO SILICON RATION IN THE RANGE OF .1:1 TO 1:1, A METHYL TO SILICON RATION IN THE RANGE OF .6:1 TO 1.1:1 AND THE TOTAL OF THE PHENYL AND METHYL TO SILICON RATIO BEING IN THE RANGE OF .8:1 TO 1.8:1, 0.1 TO 10 PERCENT BY WEIGHT OF AN ALKYLSILICATE, 0.01 TO 2 PERCENT BY WEIGHT OF A CHLOROSILANE AND THE BALANCE BEING A NON-HALOGENATED SOLVENT.
References Cited (Backward Citations)
US2868750A
Cited
US2652385A
Cited
US2643964A
Cited
US2736721A
Cited
US2755261A
Cited
US2859137A
Cited
US3053690A
Cited
US3032437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |