Patent US3346517A successfully refreshed from Google Patents.
US3346517A
Expired / Lapsed
US
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Polyurethanes formed from fatty amine polyols
Assignee: General Mills Inc
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Filing: 1963-12-23
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Granted: 1967-10-10
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Marwan R Kamal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:06
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3271; C08G18/3278; C08G18/3284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A POLYURETHANE PRODUCED BY CONTACTING (1) A POLYOL COMPOUND HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
13 words
A POLYURETHANE PRODUCED BY CONTACTING (1) A POLYOL COMPOUND HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
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Cited
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US3075928A
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US3075927A
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US3155728A
Cited
US3200155A
Cited
US3255253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |