US3375217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized vinyl chloride polymers
Assignee: Gulf Research and Development Co
•
Filing: 1966-02-02
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Granted: 1968-03-26
•
Expires: 1986-02-02
Abstract
No abstract record available.
Inventors
- 👤 Wayne E Smith
- 👤 Harry D Anspon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:27
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L33/00; C08L33/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A COMPOSITION COMPRISING (A) A VINYL CHLORIDE POLYMER AND (B) A PLASTICIZER COMPOUNDED THEREWITH, SAID PLASTICIZER COMPRISING A POLYMER OF PARTIALLY LACTONIZED POLY (METHYL PROPANOL/METHACRYLIC ACID) HAVING A MOLECULAR WEIGHT FROM ABOUT 200 TO ABOUT 2000, BEING SUBSTANTIALLY FREE OF ALDEHYDE AND ACETAL GROUPS, AND CONTAINING MONOMERIC UNITS OF THE STRUCTURES:
Claim 2
Dependent Claim
51 words
A COMPOSITION COMPRISING (A) A VINYL CHLORIDE POLYMER AND (B) A PLASTICIZER COMPOUNDED THEREWITH, SAID PLASTICIZER COMPRISING A POLYMER OF PARTIALLY LACTONIZED POLY (METHYL PROPANOL/METHACRYLIC ACID) HAVING A MOLECULAR WEIGHT FROM ABOUT 200 TO ABOUT 2000, BEING SUBSTANTIALLY FREE OF ALDEHYDE AND ACETAL GROUPS, AND CONTAINING MONOMERIC UNITS OF THE STRUCTURES:
References Cited (Backward Citations)
CA803053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |