Patent US2981170A successfully refreshed from Google Patents.
US2636015A
Expired / Lapsed
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Printing inks
Assignee: Wyeth Holdings LLC
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Filing: 1950-10-06
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Granted: 1953-04-21
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Expires: 1970-10-06
Abstract
No abstract record available.
Inventors
- 👤 Alfred F Schmutzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PRINTING INK VEHICLE USEFUL IN STEAM SETTING PRINTING INKS COMPRISING A COPOLYMER OF (1) A MONOMERIC ORGANIC SUBSTANCE WHICH CONTAINS THE POLYMERIZABLY REACTIVE GROUP CH2=C< AND (2) A HYDROXY ALKYL ESTER OF AN A,B UNSATURATED CARBOXYLIC ACID, DISPERSED IN A POLYHYDRIC ALCOHOL CONTAINING FROM 2-6 CARBON ATOMS AND 2-4 HYDROXY GROUPS, WHEREIN THE RATIO OF (1) TO (2) IS 0.3:1 TO 3.0:1 BY WEIGHT, RESPECTIVELY.
Claim 2
Dependent Claim
66 words
A PRINTING INK VEHICLE USEFUL IN STEAM SETTING PRINTING INKS COMPRISING A COPOLYMER OF (1) A MONOMERIC ORGANIC SUBSTANCE WHICH CONTAINS THE POLYMERIZABLY REACTIVE GROUP CH2=C< AND (2) A HYDROXY ALKYL ESTER OF AN A,B UNSATURATED CARBOXYLIC ACID, DISPERSED IN A POLYHYDRIC ALCOHOL CONTAINING FROM 2-6 CARBON ATOMS AND 2-4 HYDROXY GROUPS, WHEREIN THE RATIO OF (1) TO (2) IS 0.3:1 TO 3.0:1 BY WEIGHT, RESPECTIVELY.
References Cited (Backward Citations)
US2437908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |