Patent US2119941A successfully refreshed from Google Patents.
US3079641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for molding a polyurethane foam by shaping it without compression
Assignee: EIDP Inc
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Filing: 1959-02-27
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Granted: 1963-03-05
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Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Roger E Knox
- 👤 Jr James A Margedant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:44
CPC Classifications
C; C08; C08J; C08J9/00; B; B29; B29C; B29C44/00; B29C44/20; B29C44/28; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S264/00; Y10S264/66; Y10S521/00; Y10S521/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
IN THE PROCESS OF FORMING CELLULAR POLYURETHANE MATERIALS BY REACTING POLYHYDROXY COMPOUNDS WITH POLYISOCYANATES AND GENERATING A GASEOUS EXPANDING AGENT THERE-
Claim 2
Dependent Claim
21 words
IN THE PROCESS OF FORMING CELLULAR POLYURETHANE MATERIALS BY REACTING POLYHYDROXY COMPOUNDS WITH POLYISOCYANATES AND GENERATING A GASEOUS EXPANDING AGENT THERE-
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |