Patent US3068111A successfully refreshed from Google Patents.
US3068111A
Expired / Lapsed
US
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Paint colorant
Assignee: National Gypsum Co
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Filing: 1959-12-17
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Granted: 1962-12-11
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Expires: 1979-12-17
Abstract
No abstract record available.
Inventors
- 👤 Robert D Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:08
CPC Classifications
C; C09; C09D; C09D17/00; C09D17/001
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
AN AQUEOUS TINTING COMPOSITION COMPRISING A SUBM,ICRON GRADE PIGMENT, A STABILIZER MIXTURE ADDITIVE OF THE GROUP CONSISTING OF A MIXTURE OF DIBUTYL PHTHALATE AND DIACETONE ALCOHOL AND A MIXTURE OD DIMETHOXYETHYL PHTHALATE AND ACETONE, THE PROPORTION OF PHTHALATE COMPOUND TO ACETONE COMPOUND IN SAID COMPOSITION BEING FROM 1:1 TO 3:1, A PIGMENT DISPERSING AGENT AND SUFFICIENT WATER TO PROVIDE A SLURRY OF WORKABLE CONSISTENCY.
References Cited (Backward Citations)
US2130554A
Cited
US2809122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |