US2940945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous compositions comprising an aldehyde-modified amide interpolymer and an alkyd resin
Assignee: PPG Industries Inc
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Filing: 1957-02-13
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Granted: 1960-06-14
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Expires: 1977-02-13
Abstract
No abstract record available.
Inventors
- 👤 Roger M Christenson
- 👤 Harold G Bittle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:46
CPC Classifications
C; C09; C09D; C09D157/00; C09D157/06; C09D157/12; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F8/00; C08F8/14; C08F8/28; C09D167/00; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/50; C08L; C08L67/00; C08L67/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A HEAT HARDENABLE RESINOUS COMPOSITION COMPRISING AN ALKYD RESIN, AND AN INTERPOLYMER OF AN ACRYLAMIDE WITH AT LEAST ONE ANOTHER MONOMER HAVING A CH2=C< GROUP, SAID INTERPOLYMER BEING CHARACTERIZED BY HAVING AMIDO HYDROGEN ATOMS REPLACED BY THE STRUCTURE
Claim 2
Dependent Claim
38 words
A HEAT HARDENABLE RESINOUS COMPOSITION COMPRISING AN ALKYD RESIN, AND AN INTERPOLYMER OF AN ACRYLAMIDE WITH AT LEAST ONE ANOTHER MONOMER HAVING A CH2=C< GROUP, SAID INTERPOLYMER BEING CHARACTERIZED BY HAVING AMIDO HYDROGEN ATOMS 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) | 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 |