US2822282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of converting non-homogeneous asphalt to homogeneous asphalt and product
Assignee: KERR MC GEE OIL IND Inc
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Filing: 1955-09-29
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Granted: 1958-02-04
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Expires: 1975-09-29
Abstract
No abstract record available.
Inventors
- 👤 Garwin Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:05
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/005; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
THE METHOD OF CONVERTING A NON-HOMOGENEOUS ASPHALT TO A HOMOGENEOUS ASPHALT COMPRISING THE STEP OF REDUCING THE ASPHALTENE TO RESIN RATIO OF A NON-HOMOGENEOUS PETROLEUM ASPHALT TO A VALUE SUFFICIENT TO PRODUCE A HOMOGENEOUS ASPHALT THEREFROM HAVING AN ASPHALTENE TO RESIN RATIO NOT GREATER THAN 0.60, THE RESIN CONTENT OF THE HOMOGENEOUS ASPHALT THUS PRODUCED BEING DERIVED FROM A NATURALLY NON-HOMOGENEOUS PETROLEUM ASPHALT.
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |