US3557043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyacrylate-urethane lacquers
Assignee: Bayer AG
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Filing: 1967-09-18
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Granted: 1971-01-19
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Expires: 1987-09-18
Abstract
Abstract LACQUERS SUITABLE FOR MOTOR VEHICLES AND THE LIKE ARE PREPARED FROM MIXTURES OF POLYACRYLATE RESINS CONTAINING HYDROXYL GROUPS AND N-ALKOXYMETHYLURETHANES. THE ALKOXYMETHYTLURETHANES BRING ABOUT THE CROSS-LINKING OF THE POLYACRYLATE RESIN. IN ADDITION TO THE ABOVE MENTIONED INGREDIENTS, MELAMINE FORMALDEHYDE OR UREA FORMALDEHYDE RESINS MAY BE USED JOINTLY WITH THE N-ALKOXYMETHYLURETHANES.
Inventors
- 👤 Heinz Walter Krauss
- 👤 Josef Pedain
- 👤 Karl-Friedrich Zenner
- 👤 Gunter Oertel
- 👤 Hans Holtschmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
C; C08; C08G; C08G71/00; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/066; C08L; C08L61/00; C08L75/00; C08L75/04
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |