Patent US3634347A successfully refreshed from Google Patents.
US3634347A
Expired / Lapsed
US
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Acrylic lacquer coating composition containing a controlled quantity of low molecular weight melamine-formaldehyde resin
Assignee: BASF Corp
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Filing: 1969-10-10
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Granted: 1972-01-11
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Expires: 1989-10-10
Abstract
Abstract AN IMPROVED ACRYLIC LACQUER COMPOSITION COMPRISED OF A VEHICLE OR BINDER CONTAINING AN ACRYLIC COPOLYMER AND CELLULOSE ACETATE BUTYRATE IN COMBINATION WITH A CONTROLLED PROPORTION OF A LOW MOLECULAR WEIGHT MELAMINE RESIN WHICH EFFECTS A MODIFICATION AND IMPROVEMENT OF THE HEAT DISTORTION CHARACTERISTICS OF THE COATING AS APPLIED TO A SUBSTRATE, AS WELL AS PROVIDING FOR AN IMPROVEMENT IN THE RESISTANCE OF THE COATING TO CRACKING AT LOW TEMPERATURES.
Inventors
- 👤 Henry C Kao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:03
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C08; C08L; C08L1/00; C08L1/08; C08L1/10; C08L1/14; C08L61/00; C08L61/20
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |