US3387982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacturing a hard bituminous composition with a curing agent
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-03-07
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Granted: 1968-06-11
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Expires: 1983-03-07
Abstract
No abstract record available.
Inventors
- 👤 Dilworth T Rogers
- 👤 John C Munday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:01
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A PROCESS FOR THE MANUFACTURE OF A HARD BITUMINOUS SOLID COMPOSITION WHICH COMPRISES MIXING FROM ABOUT 8 TO 30 WTY. PERCENT OF A BITUMINOUS BINDER, 0.5 TO 5 WT. PERCENT OF A CURING AGENT SELECTED FROM THE GROUP CONSISTING OF NITROBENZENE, DINITROBENZENE, GALLIC ACID, PYROGALLOL AND FURFURAL WITH FINELY DIVIDED SOLID, BY WEIGHT PERCENTS BASED ON THE SOLID, COMPRESSING THE MIXTURE TO 80 TO 98% OF ITS THEORETICAL DENSITY AND CURING THE COMPRESSED MIXTURE AT A TEMPERATURE IN THE RANGE FROM ABOUT 30* TO 500*F. FOR A TIME PERIOD IN A RANGE FROM ABOUT 4 TO 80 HOURS.
Claim 2
Dependent Claim
98 words
A PROCESS FOR THE MANUFACTURE OF A HARD BITUMINOUS SOLID COMPOSITION WHICH COMPRISES MIXING FROM ABOUT 8 TO 30 WTY. PERCENT OF A BITUMINOUS BINDER, 0.5 TO 5 WT. PERCENT OF A CURING AGENT SELECTED FROM THE GROUP CONSISTING OF NITROBENZENE, DINITROBENZENE, GALLIC ACID, PYROGALLOL AND FURFURAL WITH FINELY DIVIDED SOLID, BY WEIGHT PERCENTS BASED ON THE SOLID, COMPRESSING THE MIXTURE TO 80 TO 98% OF ITS THEORETICAL DENSITY AND CURING THE COMPRESSED MIXTURE AT A TEMPERATURE IN THE RANGE FROM ABOUT 30* TO 500*F. FOR A TIME PERIOD IN A RANGE FROM ABOUT 4 TO 80 HOURS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |