US2636866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl chloride plasticized with isobutylene-diolefin-acrylonitrile copolymer
Assignee: Standard Oil Development Co
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Filing: 1949-06-29
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Granted: 1953-04-28
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Expires: 1969-06-29
Abstract
No abstract record available.
Inventors
- 👤 Fred W Banes
- 👤 David W Young
- 👤 Alta J Hund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:02
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L33/00; C08L33/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A COMPOSITION OF MATTER COMPRISING 100 PARTS OF A RESINOUS COPOLYMER OF ABOUT 95 WEIGHT PERCENT OF VINYL CHLORIDE AND 5 WEIGHT PERCENT OF VINYL ACETATE; ABOUT 50 PARTS OF A FLEXIBLE, OILRESISTANT, RESINOUS, THERMOPLASTIC TRIPOLYMER OF ABOUT 15 WEIGHT PERCENT OF COMBINED ISOBUTYLENE, ABOUT 30 WEIGHT PERCENT OF COMBINED BUTADIENE1,3 AND ABOUT 55 WEIGHT PERCENT OF COMBINED ACRYLONITRILE; ABOUT 50 PARTS OF DI-2-ETHYLHEXYL PHTHALATE; ABOUT 3 PARTS OF BASIC LEAD CARBONATE; AND ABOUT 1.5 PARTS OF STEARIC ACID.
References Cited (Backward Citations)
US2459126A
Cited
US2537626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |