Patent US2787435A successfully refreshed from Google Patents.
Patent US2744099A successfully refreshed from Google Patents.
US2744099A
Expired / Lapsed
US
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Rubbery interpolymers of a butadiene-1, 3 hydrocarbon, an alkyl acrylate and a styrene hydrocarbon
Assignee: Goodrich Corp
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Filing: 1952-09-17
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Granted: 1956-05-01
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Expires: 1972-09-17
Abstract
No abstract record available.
Inventors
- 👤 George R Mitchell
- 👤 Neil H Sherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:09
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A SYNTHETIC RUBBERY INTERPOLYMER PREPARED BY POLYMERIZING TO A CONVERSION OF ABOUT 60 PERCENT IN AQUEOUS EMULSION AT A TEMPERATURE OF 40 TO 50* F. A MONOMERIC MIXTURE CONSISTING OF 81 PERCENT BY WEIGHT OF BUTADIENE1,3, 10 PERCENT BY WEIGHT OF AN ALKYL ACRYLATE CONTAINING 4 TO 8 CARBON ATOMS IN THE ALKYL GROUP AND 1 PERCENT BY WEIGHT OF STYRENE.
Claim 2
Dependent Claim
61 words
A SYNTHETIC RUBBERY INTERPOLYMER PREPARED BY POLYMERIZING TO A CONVERSION OF ABOUT 60 PERCENT IN AQUEOUS EMULSION AT A TEMPERATURE OF 40 TO 50* F. A MONOMERIC MIXTURE CONSISTING OF 81 PERCENT BY WEIGHT OF BUTADIENE1,3, 10 PERCENT BY WEIGHT OF AN ALKYL ACRYLATE CONTAINING 4 TO 8 CARBON ATOMS IN THE ALKYL GROUP AND 1 PERCENT BY WEIGHT OF STYRENE.
References Cited (Backward Citations)
GB360822A
Cited
US2384571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |