Patent US4551941A successfully refreshed from Google Patents.
Patent US2988477A successfully refreshed from Google Patents.
US2988477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Creosote composition of improved flowability and its production
Assignee: Beazer East Inc
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Filing: 1959-06-10
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Granted: 1961-06-13
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Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Beaumont James
- 👤 Merle D Chamberlain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:22
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/026
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
51 words
CREOSOTE CONTAINING A POLYOXYALKYLENE CONDENSATE, SAID CONDENSATE BEING CHARACTERIZED BY A VISCOSITY OF ABOUT 5,000-20,000 CENTIPOISES AT 25*C. OF A ONE PERCENT BY WEIGHT SOLUTION OF SAID CONDENSATE IN WATER, IN AN AMOUNT OF AT LEAST ABOUT 0.001 PERCENT BY WEIGHT AND LESS THAN THAT WHICH CAUSES GELATION OF THE CREOSOTE.
Claim 2
Dependent Claim
51 words
CREOSOTE CONTAINING A POLYOXYALKYLENE CONDENSATE, SAID CONDENSATE BEING CHARACTERIZED BY A VISCOSITY OF ABOUT 5,000-20,000 CENTIPOISES AT 25*C. OF A ONE PERCENT BY WEIGHT SOLUTION OF SAID CONDENSATE IN WATER, IN AN AMOUNT OF AT LEAST ABOUT 0.001 PERCENT BY WEIGHT AND LESS THAN THAT WHICH CAUSES GELATION OF THE CREOSOTE.
Claim 3
Dependent Claim
75 words
METHOD OF LOWERING THE FLOW TEMPERATURE OF CREOSOTE COMPRISING INTIMATELY ADMIXING WITH CREOSOTE AN AQUEOUS SOLUTION CONTAINING BETWEEN ABOUT 0.03 AND 3 PERCENT BY WEIGHT OF A POLYOXYETHYLENE CONDENSATE, SAID CONDENSATE BEING CHARACTERIZED BY A VISCOSITY OF ABOUT 5,000-20,000 CENTIPOISES AT 25*C. OF A ONE PERCENT BY WEIGHT SOLUTION OF SAID CONDENSATE IN WATER, IN AN AMOUNT OF AT LEAST ABOUT 0.001 PERCENT BY WEIGHT AND LESS THAN THAT WHICH CAUSES GELATION OF SAID CREOSOTE.
Claim 4
Dependent Claim
75 words
METHOD OF LOWERING THE FLOW TEMPERATURE OF CREOSOTE COMPRISING INTIMATELY ADMIXING WITH CREOSOTE AN AQUEOUS SOLUTION CONTAINING BETWEEN ABOUT 0.03 AND 3 PERCENT BY WEIGHT OF A POLYOXYETHYLENE CONDENSATE, SAID CONDENSATE BEING CHARACTERIZED BY A VISCOSITY OF ABOUT 5,000-20,000 CENTIPOISES AT 25*C. OF A ONE PERCENT BY WEIGHT SOLUTION OF SAID CONDENSATE IN WATER, IN AN AMOUNT OF AT LEAST ABOUT 0.001 PERCENT BY WEIGHT AND LESS THAN THAT WHICH CAUSES GELATION OF SAID CREOSOTE.
References Cited (Backward Citations)
US2904467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |