US3213065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters and polyurethanes from 5-amino-benzene-1, 3-dicarboxylic acid
Assignee: Bayer AG
•
Filing: 1959-11-06
•
Granted: 1965-10-19
•
Expires: 1979-11-06
Abstract
No abstract record available.
Inventors
- 👤 Bunge Wilhelm
- 👤 Bayer Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:37
CPC Classifications
C; C09; C09D; C09D167/00; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/46; C08G18/4615
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
A COATING COMPOSITION COMPRISING THE CONDENSATION PRODUCT OF THE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
A COATING COMPOSITION COMPRISING THE CONDENSATION PRODUCT OF THE COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
21 words
A COATING COMPOSITION COMPRISING THE REACTION PRODUCT OF AN ORGANIC ISOCYANATE AND THE CONDENSATION PRODUCT OF THE COMPOUND HAVING THE FORMULA
Claim 4
Dependent Claim
21 words
A COATING COMPOSITION COMPRISING THE REACTION PRODUCT OF AN ORGANIC ISOCYANATE AND THE CONDENSATION PRODUCT OF THE COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
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US2282827A
Cited
US2333639A
Cited
US2563289A
Cited
US2621166A
Cited
GB695164A
Cited
US2764565A
Cited
US2891929A
Cited
US2820814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |