US3511792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated polyester resins formed between polymeric fatty alcohols and polycarboxylic acids
Assignee: Bayer Pharma AG
•
Filing: 1967-07-07
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Granted: 1970-05-12
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Expires: 1987-07-07
Abstract
No abstract record available.
Inventors
- 👤 Dietrich Helm
- 👤 Eugen Griebsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:49
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA646071A
Cited
US2347562A
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US2413612A
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US3039980A
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US3123578A
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US3268462A
Cited
US3158584A
Cited
US3374208A
Cited
US3375301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |