US3755518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of flexible and resilient foamed plastics
Assignee: BASF SE
•
Filing: 1970-05-28
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Granted: 1973-08-28
•
Expires: 1990-05-28
Abstract
Abstract PRODUCTION OF FLEXIBLE AND RESILIENT FOAMED PLASTICS BY FOAMING A VULCANIZABLE LATEX, MIXING THE FOAMED PRODUCT WITH EXPANDED PARTICLES OF AN OLEFIN POLYMER, FILLING THE MIXTURE INTO A MOLD, HEATING THE MIXTURE THEREIN TO A TEMPERATURE OF FROM 70* TO 150* C., REMOVING THE FLEXIBLE AND RESILIENT FOAM THEREFROM AND DRYING SAID FOAM. THE FLEXIBLE AND RESILIENT FOAMED PLASTICS ARE USED AS UPHOLSTERY PADDING, FOR THERMAL INSULATION AND AS SHOCKABSORBING MATERIALS.
Inventors
- 👤 H Koerner
- 👤 F Stastny
- 👤 R Gaeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:00
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/35; C08J2321/00; Y; Y10; Y10S; Y10S264/00; Y10S264/07; Y10S264/16; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249971; Y10T428/249972; Y10T428/249976; Y10T428/249977
Claims Analysis
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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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |