US2649381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized stencil ink
Assignee: Marsh Stencil Machine Co
•
Filing: 1949-08-06
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Granted: 1953-08-18
•
Expires: 1969-08-06
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Hempel
- 👤 Flavian P Calabrese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:58
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A STENCIL INK COMPRISING THE FOLLOWING PRODUCTS IN THE INDICATED RATIOS; ABOUT 5 TO 10 GALLONS OF GLOSS OIL, CARBON BLACK PIGMENT AND SOYBEAN LECITHIN IN THE RATIO OF ABOUT 5% OF THE WEIGHT OF CARBON BLACK, AND A CARRIER IN AN AMOUNT AT LEAST GREAT ENOUGH TO PROVIDE A PASTE, SAID CARRIER BEING A PETROLEUM DISTILLATE HAVING A DISTILLATION RANGE OF ABOUT 363 TO 613* F. AND A FLASH POINT OF 166* F.
References Cited (Backward Citations)
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Cited
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GB293238A
Cited
US2069187A
Cited
US2067234A
Cited
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Cited
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Cited
US2390390A
Cited
US2482879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |