Patent US2923310A successfully refreshed from Google Patents.
Patent US3231531A successfully refreshed from Google Patents.
US3231531A
Expired / Lapsed
US
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Polyvinyl chloride resins stabilized with a combination of a calcium salt, zinc salt, a phosphorus compound, and a sulphate or saccharin
Assignee: Vibrantz Corp
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Filing: 1965-01-08
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Granted: 1966-01-25
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Expires: 1985-01-08
Abstract
No abstract record available.
Inventors
- 👤 Robert A Buckley
- 👤 Russo Nadine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:25
CPC Classifications
C; C08; C08K; C08K5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A HEAT STABILIZED PLASTICIZED VINYL CHLORIDE HOMOPOLYMER RESIN CONTAINING IN INTIMATE ADMIXTURE THEREWITH (A) FROM ABOUT 0.01 TO 3 PARTS PER 100 PARTS RESIN OF AN ALKALI METAL SALT OF MATERIAL HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
35 words
A HEAT STABILIZED PLASTICIZED VINYL CHLORIDE HOMOPOLYMER RESIN CONTAINING IN INTIMATE ADMIXTURE THEREWITH (A) FROM ABOUT 0.01 TO 3 PARTS PER 100 PARTS RESIN OF AN ALKALI METAL SALT OF MATERIAL HAVING THE GENERAL FORMULA:
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |