Patent US3190845A successfully refreshed from Google Patents.
US3190845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coal tar coating composition
Assignee: Cook Paint and Varnish Co
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Filing: 1961-01-30
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Granted: 1965-06-22
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Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Robert H Goodnight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:10
CPC Classifications
C; C09; C09D; C09D195/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A COATING COMPOSITION CONSISTING ESSENTIALLY OF A COLD STABLE, DRY GRANULAR MIXTURE OF HARD COAL TAR PITCH, SOLID GLYCIDYL POLYETHER RESIN AND SOLID EPOXY CURING AGENT, SAID CURING AGENT BEING ACTIVE ONLY AT AN ELEVATED TEMPERATURE WHICH IS AT LEAST AS HIGH AS THE MELTING POINT OF SAID MIXTURE, SAID MIXTURE A MELTING POINT AND CURING POINT OF AT LEAST 250*F. AND INCLUDING FROM 20 TO 60 PARTS RESIN AND FROM 40 TO 80 PARTS OF PITCHED BASED ON 100 PARTS BY WEIGHT OF THE RESIN/PITCH TOTAL AND FROM 15 TO 100 PARTS CURING AGENT PER 100 PARTS OF RESIN.
Claim 2
Dependent Claim
100 words
A COATING COMPOSITION CONSISTING ESSENTIALLY OF A COLD STABLE, DRY GRANULAR MIXTURE OF HARD COAL TAR PITCH, SOLID GLYCIDYL POLYETHER RESIN AND SOLID EPOXY CURING AGENT, SAID CURING AGENT BEING ACTIVE ONLY AT AN ELEVATED TEMPERATURE WHICH IS AT LEAST AS HIGH AS THE MELTING POINT OF SAID MIXTURE, SAID MIXTURE A MELTING POINT AND CURING POINT OF AT LEAST 250*F. AND INCLUDING FROM 20 TO 60 PARTS RESIN AND FROM 40 TO 80 PARTS OF PITCHED BASED ON 100 PARTS BY WEIGHT OF THE RESIN/PITCH TOTAL AND FROM 15 TO 100 PARTS CURING AGENT PER 100 PARTS OF RESIN.
References Cited (Backward Citations)
US2921923A
Cited
US2765288A
Cited
US2906720A
Cited
US3015635A
Cited
US2844489A
Cited
US2997776A
Cited
US3012486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |