US3579522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of polyester varnish solutions
Assignee: Bayer AG
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Filing: 1969-01-21
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Granted: 1971-05-18
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Expires: 1989-01-21
Abstract
Abstract A VARNISH SOLUTION COMPRISING A POLYESTER OF AN A,BUNSATURATED DICARBOXYLIC ACID DISSOLVED IN A COPOLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER, SAID SOLUTION HAVING A THIXOTROPY $F OF AT LEAST ABOUT 10% AND CONTAINING A LIQUID ORGANOPOLYSILOXANE.
Inventors
- 👤 Otto Bendszus
- 👤 Clemens Niehaus
- 👤 Manfred Patheiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:17
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |