US2634248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride polymers plasticized with dialkyl esters of biphenyldicarboxylic acid
Assignee: Monsanto Chemicals Ltd
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Filing: 1949-09-14
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Granted: 1953-04-07
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Expires: 1969-09-14
Abstract
No abstract record available.
Inventors
- 👤 Dazzi Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A PLASTICIZED VINYL CHLORIDE RESIN WHICH COMPRISES A POLYMER OF AT LEAST ABOUT 70 PERCENT OF VINYL CHLORIDE AND UP TO ABOUT 30 PERCENT OF A COPOLYMERIZABLE MONOMER, CONTAINING INTIMATELY DISPERSED THEREIN FROM FIVE TO 50 PERCENT BY WEIGHT, BASED ON THE PLASTICIZED COMPOSITION, OF A DIALKYL ESTER OF BIPHENYLDICARBOXYLIC ACID, WHEREIN THE ALKYL RADICALS CONTAIN FROM FOUR TO TEN CARBON ATOMS.
Claim 2
Dependent Claim
62 words
A PLASTICIZED VINYL CHLORIDE RESIN WHICH COMPRISES A POLYMER OF AT LEAST ABOUT 70 PERCENT OF VINYL CHLORIDE AND UP TO ABOUT 30 PERCENT OF A COPOLYMERIZABLE MONOMER, CONTAINING INTIMATELY DISPERSED THEREIN FROM FIVE TO 50 PERCENT BY WEIGHT, BASED ON THE PLASTICIZED COMPOSITION, OF A DIALKYL ESTER OF BIPHENYLDICARBOXYLIC ACID, WHEREIN THE ALKYL RADICALS CONTAIN FROM FOUR TO TEN CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |