Patent US3567663A successfully refreshed from Google Patents.
US3567663A
Expired / Lapsed
US
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Low permeability polyurethane foam and process for the manufacture thereof
Assignee: Kimberly Clark Tissue Co
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Filing: 1968-01-05
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Granted: 1971-03-02
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Expires: 1988-01-05
Abstract
Abstract LOW PERMEABILITY POLYURETHNE FOAM COMPRINSING A POLYETHER-TYPE POLYURETHANE HAVING INCORPORATED THEREIN A POLYBUTENE AND UNSATURATED FATTY ACID OR MIXTURE OF UNSATURATED FATTY ACIDS, AND A PROCESS FOR MAKING A LOW PERMEABILITY POLYURETHANE FOAM BY REACTING A POLYISOCYANATE AND A POLYETHER POLYOL IN THE PRESENCE OF A POLYBUTENE AND AN UNSATURATED FATTY ACID OR MIXTURE OF UNSATURATED FATTY ACIDS.
Inventors
- 👤 Rocco P Triolo
- 👤 Roland J Lamplugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:25
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0095; C08J9/0061; C08J2375/00; C08J2375/04; C08J2375/08; Y; Y10; Y10S; Y10S264/00; Y10S264/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |