Patent EP0146269A2 successfully refreshed from Google Patents.
Patent US2940943A successfully refreshed from Google Patents.
US2940943A
Expired / Lapsed
US
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Resinous coating composition comprising nitrocellulose and aldehyde modified amide polymer and metallic surface coated therewith
Assignee: PPG Industries Inc
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Filing: 1957-02-25
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Granted: 1960-06-14
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Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
- 👤 Henry A Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:50
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F8/00; C08F8/28; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/20; C08F2810/50; C08L; C08L1/00; C08L1/08; C08L1/16; C08L1/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A RESINOUS COMPOSITION COMPRISING A BLEND OF NITROCELLULOSE AND AN INTERPOLYMER OF AN AMIDE SELECTED FROM THE GROUP CONSISTING OF ACRYLAMIDE, METHACRYLAMIDE AND ITACONIC DIAMIDE, AND AT LEAST ONE OTHER MONOMER CONTAINING A >C=CH2 GROUP, SAID INTERPOLYMER CONTAINING FROM ABOUT 5 TO 45 PERCENT BY WEIGHT OF SAID AMIDE IN POLYMERIZED FORM 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
78 words
A RESINOUS COMPOSITION COMPRISING A BLEND OF NITROCELLULOSE AND AN INTERPOLYMER OF AN AMIDE SELECTED FROM THE GROUP CONSISTING OF ACRYLAMIDE, METHACRYLAMIDE AND ITACONIC DIAMIDE, AND AT LEAST ONE OTHER MONOMER CONTAINING A >C=CH2 GROUP, SAID INTERPOLYMER CONTAINING FROM ABOUT 5 TO 45 PERCENT BY WEIGHT OF SAID AMIDE IN POLYMERIZED FORM 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
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |