Patent US3016575A successfully refreshed from Google Patents.
US3016575A
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US
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Method of molding open pore isocyanate foam
Assignee: Bayer AG
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Filing: 1957-03-11
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Granted: 1962-01-16
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Expires: 1977-03-11
Abstract
No abstract record available.
Inventors
- 👤 Ebneth Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:23
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S264/00; Y10S264/14; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1059
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
42 words
A PROCESS FOR THE PRODUCTION OF ISOCYANATE FOAM WITH PREDOMINATELY OPEN PORES WHICH COMPRISES MECHANICALLY REMOVING THE SURFACE SKIN PRODUCED ON THE SURFACE OF SAID ISOCYANATE FROM IMMEDIATELY AFTER COMPLETION OF THE FOAMING REACTION AND BEFORE COMPLETE CURING OF SAID ISOCYANATE FOAM.
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US2296305A
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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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |