US3399153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent-soluble, heat-hardening interpolymers consisting essentially of alkylolated acrylamides and polyethylenically unsaturated polyester resins
Assignee: De Soto Chemical Coatings Inc
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Filing: 1963-04-09
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Granted: 1968-08-27
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Expires: 1983-04-09
Abstract
No abstract record available.
Inventors
- 👤 Sekmakas Kazys
- 👤 Roland F Stancl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:04
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A SOLVENT-SOLUBLE, HEAT-HARDENING, NON-GELLED INTERPOLYMER OF: (A) AN ACRYLAMIDE IN AN AMOUNT OF FROM 2-50% BY WEIGHT, BASED ON THE WEIGHT OF THE INTERPOLYMER; AND (B) THE BALANCE OF THE INTERPOLYMER CONSISTING ESSENTIALLY OF POLYETHYLENICALLY UNSATURATED POLYESTER; SAID INTERPOLYMER BEING REACTED WITH FROM 0.2-5 EQUIVALENTS OF ALDEHYDE PER AMIDE GROUP IN SAID INTERPOLYMER.
Claim 2
Dependent Claim
53 words
A SOLVENT-SOLUBLE, HEAT-HARDENING, NON-GELLED INTERPOLYMER OF: (A) AN ACRYLAMIDE IN AN AMOUNT OF FROM 2-50% BY WEIGHT, BASED ON THE WEIGHT OF THE INTERPOLYMER; AND (B) THE BALANCE OF THE INTERPOLYMER CONSISTING ESSENTIALLY OF POLYETHYLENICALLY UNSATURATED POLYESTER; SAID INTERPOLYMER BEING REACTED WITH FROM 0.2-5 EQUIVALENTS OF ALDEHYDE PER AMIDE GROUP IN SAID INTERPOLYMER.
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) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |