US3502602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble unsaturated polyester amide resins
Assignee: Bayer Pharma AG
•
Filing: 1967-12-11
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Granted: 1970-03-24
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Expires: 1987-12-11
Abstract
No abstract record available.
Inventors
- 👤 Dietrich Helm
- 👤 Rainer Janssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:11
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44; A; A61; A61C; A61C1/00; A61C1/02; A61C1/05; A61C1/057
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3127365A
Cited
CA744988A
Cited
US2518148A
Cited
US2638449A
Cited
US2706191A
Cited
BE572463A
Cited
US3383391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |