US3655588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urethane-containing aminic polyols and foams derived therefrom
Assignee: Bayer Corp
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Filing: 1970-01-02
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Granted: 1972-04-11
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Expires: 1990-01-02
Abstract
Abstract THIS INVENTION RELATES TO NOVEL POLYOLS CONTAINING URETHANE GROUPS DERIVED BY COUPLING AN AMINIC POLYOL WITH A POLYISOCYANATE. MOREOVER, THIS INVENTION RELATES TO NOVEL POLYURETHANE RESINS, PARTICULARLY NOVEL POLYURETHANE FOAMS, PREPARED FROM THE POLYOLS OF THE INVENTION.
Inventors
- 👤 Paul R Mosso
- 👤 Carl R Faelten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:09
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/721; C08G18/727; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5036; C08G18/5045; C08G2110/00; C08G2110/0025; C08G2110/0041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |