US3075930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanded polyurethane plastic containing zein and process for preparing same
Assignee: Atlantic Research Corp
•
Filing: 1960-08-10
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Granted: 1963-01-29
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Expires: 1980-08-10
Abstract
No abstract record available.
Inventors
- 👤 William D Stewart
- 👤 Richard O Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:15
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08J2375/00; C08J2375/04; C08J2489/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A FOAMED POLYURETHANE COMPOSITION ESSENTIALLY COMPRISING THE REACTION PRODUCT OF AN ORGANIC POLYOL AND AN ORGANIC POLYISOCYANATE, IN ADMIXTURE WITH A FOAMING AGENT AND A STABILIZING AGENT, SAID STABILIZING AGENT BEING ZEIN IN AN AMOUNT SUFFICIENT TO STABILIZE THE FOAMED COMPOSITION.
Claim 2
Dependent Claim
41 words
A FOAMED POLYURETHANE COMPOSITION ESSENTIALLY COMPRISING THE REACTION PRODUCT OF AN ORGANIC POLYOL AND AN ORGANIC POLYISOCYANATE, IN ADMIXTURE WITH A FOAMING AGENT AND A STABILIZING AGENT, SAID STABILIZING AGENT BEING ZEIN IN AN AMOUNT SUFFICIENT TO STABILIZE THE FOAMED COMPOSITION.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |