US3219606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of shellac with interpolymers of unsaturated carboxylic amides and ethylenically unsaturated compounds
Assignee: PPG Industries Inc
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Filing: 1960-10-31
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Granted: 1965-11-23
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Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Conrad L Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:45
CPC Classifications
C; C08; C08F; C08F22/00; C08F22/36; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/58; C08F8/00; C09; C09D; C09D157/00; C09D157/06; C09D157/12; C08L; C08L93/00; C08L93/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A RESINOUS COATING COMPOSTION CONSISTING ESSENTAILLY OF (1) AT LEAST 20 PERCENT OF AN INTERPOLYMER OF (A) FROM ABOUT 2 PERCENT TO ABOUT 50 PERCENT BY WEIGHT OF A POLYMERIZABLE UNSATURATED CARBOXYLIC ACID AMIDE SELECTED FROM THE GROUP CONSISTING OF ACRYLAMIDE, METHACRYLAMIDE, ITACONIC ACID DIAMIDE, ALPHA-ETHYL ACRYLAMIDE, CROTONAMIDE, FUMARIC ACID DIAMIDE, MALEURIC ACID AND N-CARBAMYL MALEIMIDE, AND (B) AT LEAST ONE OTHER AMIDE-FREE MONOMER CONTAINING A CH2=C< GROUP, SAID TERPOLYMER BEIN CHARACTERIZED BY AT LEAST ABOUT 50 PERCENT OF THE AMIDO GROUPS FROM SAID AMIDE BEING OF THE STRUCTURE
Claim 2
Dependent Claim
89 words
A RESINOUS COATING COMPOSTION CONSISTING ESSENTAILLY OF (1) AT LEAST 20 PERCENT OF AN INTERPOLYMER OF (A) FROM ABOUT 2 PERCENT TO ABOUT 50 PERCENT BY WEIGHT OF A POLYMERIZABLE UNSATURATED CARBOXYLIC ACID AMIDE SELECTED FROM THE GROUP CONSISTING OF ACRYLAMIDE, METHACRYLAMIDE, ITACONIC ACID DIAMIDE, ALPHA-ETHYL ACRYLAMIDE, CROTONAMIDE, FUMARIC ACID DIAMIDE, MALEURIC ACID AND N-CARBAMYL MALEIMIDE, AND (B) AT LEAST ONE OTHER AMIDE-FREE MONOMER CONTAINING A CH2=C< GROUP, SAID TERPOLYMER BEIN CHARACTERIZED BY AT LEAST ABOUT 50 PERCENT OF THE AMIDO GROUPS FROM SAID AMIDE BEING OF THE STRUCTURE
References Cited (Backward Citations)
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |