US3276905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating system which includes an acrylic lacquer top coat
Assignee: PPG Industries Inc
•
Filing: 1961-10-19
•
Granted: 1966-10-04
•
Expires: 1981-10-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Samuel Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:34
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/50; B05D7/52; B05D7/53; B05D7/536; C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D157/00; C09D157/06; C09D157/12; C09D161/00; C09D161/20; C09D167/00; C08; C08L; C08L1/00; C08L1/08; C08L1/10; C08L1/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522; Y10T428/31678; Y10T428/31703; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/3188; Y10T428/31884; Y10T428/31891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A METAL ARTICLE HAVING A HARD, ADHERENT, CRACK-RESISTANT COATING COMPRISING A LAYER OF PRIMER AND A SUPERIMPOSED LAYER OF A POLYMER OF AN ALKYL METHACRYLATE, SAID PRIMER COMPRISING (1) A HEAT HARDENABLE RESINOUS COMPOSITION COMPRISING AN INTERPOLYMER CONTAINING FROM ABOUT 2 TO 50 PERCENT BY WEIGHT OF AN UNSATURATED CARBOXYLIC ACID AMIDE IN POLYMERIZED FROM BASED ON THE TOTAL WEIGHT OF SAID INTERPOLYMER AND BEING CHARACTERIZED BY HAVING AT LEAST ONE HYDROGEN ATOM OF AN AMIDO NITROGEN REPLACED BY THE STRUCTURE:
Claim 2
Dependent Claim
81 words
A METAL ARTICLE HAVING A HARD, ADHERENT, CRACK-RESISTANT COATING COMPRISING A LAYER OF PRIMER AND A SUPERIMPOSED LAYER OF A POLYMER OF AN ALKYL METHACRYLATE, SAID PRIMER COMPRISING (1) A HEAT HARDENABLE RESINOUS COMPOSITION COMPRISING AN INTERPOLYMER CONTAINING FROM ABOUT 2 TO 50 PERCENT BY WEIGHT OF AN UNSATURATED CARBOXYLIC ACID AMIDE IN POLYMERIZED FROM BASED ON THE TOTAL WEIGHT OF SAID INTERPOLYMER AND BEING CHARACTERIZED BY HAVING AT LEAST ONE HYDROGEN ATOM OF AN AMIDO NITROGEN REPLACED BY THE STRUCTURE:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |