US2927862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of tinting surface coverings
Assignee: WELCO Manufacturing Co Inc
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Filing: 1955-06-20
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Granted: 1960-03-08
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Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Charles W Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:07
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD REPRODUCIBLY AND UNIFORMLY TINTING A RELATIVELY SMALL AMOUNT OF THE COMPONENTS OF AN INITIALLY DRY, POWDERED, COLD WATER PAINT COMPRISING THE STEPS OF GRINDING AN AMOUNT OF DRY WATER-INSOLUBLE, FINELY DIVIDED COLORING PIGMENT WITH CALCIUM CARBONATE AND A QUANTITY OF DRY SOLID SURFACE TENSION DEPRESSANT CAPABLE OF COMPLETELY DISPERSING SAID AMOUNT OF PIGMENT IN A PREDETERMINED PROPORTION OF WATER, INTRODUCING THE DRY ADMIXTURE INTO SAID PROPORTION OF WATER TO PRESENT A TINTING SLURRY, AND THROUGHLY ADMIXING THE TINTING SLURRY WITH A PREDETERMINED AMOUNT OF SAID POWDERED COLD WATER PAINT.
Claim 2
Independent Claim
91 words
A METHOD REPRODUCIBLY AND UNIFORMLY TINTING A RELATIVELY SMALL AMOUNT OF THE COMPONENTS OF AN INITIALLY DRY, POWDERED, COLD WATER PAINT COMPRISING THE STEPS OF GRINDING AN AMOUNT OF DRY WATER-INSOLUBLE, FINELY DIVIDED COLORING PIGMENT WITH CALCIUM CARBONATE AND A QUANTITY OF DRY SOLID SURFACE TENSION DEPRESSANT CAPABLE OF COMPLETELY DISPERSING SAID AMOUNT OF PIGMENT IN A PREDETERMINED PROPORTION OF WATER, INTRODUCING THE DRY ADMIXTURE INTO SAID PROPORTION OF WATER TO PRESENT A TINTING SLURRY, AND THROUGHLY ADMIXING THE TINTING SLURRY WITH A PREDETERMINED AMOUNT OF SAID POWDERED COLD WATER PAINT.
References Cited (Backward Citations)
GB118040A
Cited
US1453457A
Cited
US1972208A
Cited
US2132243A
Cited
US2167221A
Cited
US2212566A
Cited
US2513121A
Cited
US2497346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |