Patent US3088172A successfully refreshed from Google Patents.
US3088172A
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Process for the production of molded cellular polyurethane plastics
Assignee: Bayer AG
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Filing: 1957-05-10
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Granted: 1963-05-07
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Expires: 1977-05-10
Abstract
No abstract record available.
Inventors
- 👤 Weinbrenner Erwin
- 👤 Hoppe Peter
- 👤 Breer Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:24
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/10; B29C44/105; B29K; B29K2075/00; Y; Y10; Y10S; Y10S425/00; Y10S425/019
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR THE PRODUCTION OF MOLDED CELLULAR POLYURETHANE ELEMENTS WHICH COMPRISES SUBMERGING A SUBSTANTIALLY DEFLATED, ELASTIC, DILATABLE, HOLLOW BODY IN A LIQUID TO A DEPTH TO FORM A MOLDED ELEMENT HAVING A PREDETERMINED SIZE, CONFIGURATION AND DENSITY AND INTRODUCING INTO SAID BODY A MIXTURE OF THE REACTIVE COMPONENTS OF A CELLULAR POLYURETHANE PLASTIC WHEREIN REACTION COMMENCES CAUSING EXPANSION OF SAID BODY AGAINST THE PRESSURE EXERTED BY SAID LIQUID.
Claim 2
Dependent Claim
69 words
A PROCESS FOR THE PRODUCTION OF MOLDED CELLULAR POLYURETHANE ELEMENTS WHICH COMPRISES SUBMERGING A SUBSTANTIALLY DEFLATED, ELASTIC, DILATABLE, HOLLOW BODY IN A LIQUID TO A DEPTH TO FORM A MOLDED ELEMENT HAVING A PREDETERMINED SIZE, CONFIGURATION AND DENSITY AND INTRODUCING INTO SAID BODY A MIXTURE OF THE REACTIVE COMPONENTS OF A CELLULAR POLYURETHANE PLASTIC WHEREIN REACTION COMMENCES CAUSING EXPANSION OF SAID BODY AGAINST THE PRESSURE EXERTED BY SAID LIQUID.
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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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |