Patent US2631986A successfully refreshed from Google Patents.
US2631986A
Expired / Lapsed
US
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Printing inks and processes for producing the same
Assignee: Wyeth Holdings LLC
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Filing: 1949-07-02
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Granted: 1953-03-17
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Expires: 1969-07-02
Abstract
No abstract record available.
Inventors
- 👤 Alfred F Schmutzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:59
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/102; C09D11/104; C09D11/105
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
A STEAM-SETTING PRINTING INK COMPRISING PIGMENT AND A VEHICLE CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF PHTHALIC ANHYDRIDE AND A SATURATED MONOCARBOXYLIC ALIPHATIC ACID HAVING BETWEEN 8 AND 18 CARBON ATOMS, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PENTAERYTHRITOL AND DIPENTAERYTHRITOL DISSOLVED IN A BUTANE DIOL, WHEREIN THE WEIGHT OF THE MONOCARBOXYLIC ACID IN THE REACTION PRODUCT CONSTITUTES FROM ABOUT 13.5 TO 35.6% BY WEIGHT OF THE PHTHALIC ANHYDRIDE PRESENT AND WHEREIN SAID REACTION PRODUCT HAS AN ACID NUMBER OF ABOUT 100-190.
References Cited (Backward Citations)
US2385613A
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US2289638A
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US2313328A
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US2427255A
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US2437908A
Cited
US2479836A
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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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |