US2826507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binder composition and method of preparing same
Assignee: Phillips Petroleum Co
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Filing: 1953-08-31
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Granted: 1958-03-11
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Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 Paul M Waddill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:29
CPC Classifications
C; C10; C10G; C10G9/00; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C10C; C10C1/00; C10C1/04; C10C1/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A PROCESS WHICH COMPRISES MIXING A PETROLEUM CRACKING STOCK BOILING PREDOMINANTLY ABOBE 400*F. WITH SOLID FILLER SELECTED FROM THE GROUP OF CARBON TYPE MATERIALS CONSISTING OF THE CARBON BLACKS AND GRAPHITE, VACUUM DISTILLING THE MIXTURE OF OBTAIN A RESIDUE HAVING A RING-AND-BALL SOFTENING POINT IN THE RANGE 300 TO 400*F., ADDING PREDOMINANTLY AROMATIC OIL TO DECREASE THE SOFTEN ING POINT TO A VALUE IN THE RANGE 120 TO 130*F. AND RECOVERING A PITCHY RESIDUE.
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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) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |