US3048494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint sealing compositions
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1959-06-02
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Granted: 1962-08-07
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Expires: 1979-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Edgar W Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:18
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A COMPOSITION FOR FILLING JOINTS, WHICH IS SUBSTANTIALLY FREE FROM SAG AT ELEVATED TEMPERATURES CONSISTING ESSENTIALLY OF FROM ABOUT 15 PERCENT TO ABOUT 40 PERCENT BY WEIGHT OF COMMINUTED GILSONITE SUSPENDED IN FROM ABOUT 40 PERCENT TO ABOUT 60 PERCENT BY WEIGHT OF PARAFFIN OIL; FROM ABOUT 5 PERCENT TO ABOUT 20 PERCENT BY WEIGHT OF A NATURALLY OCCURING COLLOIDAL CLAY HAVING A SURFACE AREA OF AT LEAST 50 SQUARE METERS PER GRAM, COLLOIDALLY DISPERSED THEREIN; AND FROM ABOUT 10 PERCENT TO ABOUT 50 PERCENT, BASED ON THE WEIGHT OF SAID CLAY, OF A FATTY ACID AMIDE OF THE FOLLOWING STRUCTURAL FORMULA;
Claim 2
Dependent Claim
102 words
A COMPOSITION FOR FILLING JOINTS, WHICH IS SUBSTANTIALLY FREE FROM SAG AT ELEVATED TEMPERATURES CONSISTING ESSENTIALLY OF FROM ABOUT 15 PERCENT TO ABOUT 40 PERCENT BY WEIGHT OF COMMINUTED GILSONITE SUSPENDED IN FROM ABOUT 40 PERCENT TO ABOUT 60 PERCENT BY WEIGHT OF PARAFFIN OIL; FROM ABOUT 5 PERCENT TO ABOUT 20 PERCENT BY WEIGHT OF A NATURALLY OCCURING COLLOIDAL CLAY HAVING A SURFACE AREA OF AT LEAST 50 SQUARE METERS PER GRAM, COLLOIDALLY DISPERSED THEREIN; AND FROM ABOUT 10 PERCENT TO ABOUT 50 PERCENT, BASED ON THE WEIGHT OF SAID CLAY, OF A FATTY ACID AMIDE OF THE FOLLOWING STRUCTURAL FORMULA;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |