US3153002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of organic polyisocyanates and polyether polyols derived from sucrose and mehods for the preparation thereof
Assignee: PPG Industries Inc
•
Filing: 1959-08-12
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Granted: 1964-10-13
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Expires: 1979-08-12
Abstract
No abstract record available.
Inventors
- 👤 Wismer Marco
- 👤 Louis R Lebras
- 👤 John R Peffer
- 👤 James F Foote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:31
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C07H15/08; A; A24; A24B; A24B15/00; A24B15/10; A24B15/12; C08; C08B; C08B37/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/487; C08G18/4883
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
21 words
A METHOD OF FORMING A RIGID FOAMED POLYURETHANE RESING OF A POLYETHER POLYOL OF SUCROSE, THE POLYOL BEING OF THE STRUCTURE
References Cited (Backward Citations)
US2616889A
Cited
US2606186A
Cited
US2764565A
Cited
US2866774A
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US2843568A
Cited
US3072582A
Cited
FR1161239A
Cited
US2888413A
Cited
US2962455A
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US2902478A
Cited
US2949431A
Cited
US3042666A
Cited
US3094494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |