Patent US3288729A successfully refreshed from Google Patents.
US3288729A
Expired / Lapsed
US
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Open-cell polyvinyl chloride foam
Assignee: Vanderbilt Chemicals LLC
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Filing: 1962-12-06
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Granted: 1966-11-29
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Expires: 1982-12-06
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Waterman
- 👤 Kenneth M Deal
- 👤 Peter A Whitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:51
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/30; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C08J3/00; C08J3/02; C08J3/09; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; Y; Y10; Y10S; Y10S264/00; Y10S264/13; Y10S264/60; Y10S521/00; Y10S521/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A COMPOSITION ESPECIALLY ADAPTED FOR THE FORMATION OF A FINE, UNIFORM, OPEN-CELL POLYVINYL CHLORIDE FOAM BY THE INCORPORATION OF AIR THEREIN WHICH COMPRISES AN UNFOAMED POLYVINYL CHLORIDE PLASTISOL HAVING SUBSTANTIALLY CONSTANT GEL-FREE FLOW CHARACTERISTICS DURING STORAGE AND CONTAINING FROM ABOUT 1 TO ABOUT 8 PARTS BY WEIGHT OF AN ALKALI METAL SOAP PER 100 PARTS BY WEIGHT OF PLASTISOL, SAID SOAP BEING AN ALKALI METAL SALT OF A FATTY ACID HAVING FROM 12 TO 24 CARBON ATOMS, AND FROM ABOUT 0.2 TO ABOUT 1.8 PARTS BY WEIGHT OF WATER PER 100 PARTS BY WEIGHT OF PLASTISOL.
Claim 2
Dependent Claim
96 words
A COMPOSITION ESPECIALLY ADAPTED FOR THE FORMATION OF A FINE, UNIFORM, OPEN-CELL POLYVINYL CHLORIDE FOAM BY THE INCORPORATION OF AIR THEREIN WHICH COMPRISES AN UNFOAMED POLYVINYL CHLORIDE PLASTISOL HAVING SUBSTANTIALLY CONSTANT GEL-FREE FLOW CHARACTERISTICS DURING STORAGE AND CONTAINING FROM ABOUT 1 TO ABOUT 8 PARTS BY WEIGHT OF AN ALKALI METAL SOAP PER 100 PARTS BY WEIGHT OF PLASTISOL, SAID SOAP BEING AN ALKALI METAL SALT OF A FATTY ACID HAVING FROM 12 TO 24 CARBON ATOMS, AND FROM ABOUT 0.2 TO ABOUT 1.8 PARTS BY WEIGHT OF WATER PER 100 PARTS BY WEIGHT OF PLASTISOL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |