US3093573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalts of improved resistance to flow
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-12-15
•
Granted: 1963-06-11
•
Expires: 1979-12-15
Abstract
No abstract record available.
Inventors
- 👤 Luke W Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:34
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A PROESS FOR IMPROVING THE FLOW PROPERTIES OF AN ASPHALT WHICH COMPRISES SEGREGATING FROM A SEPARATE ASPHATIC FRACTION A HYDROCARBON MIXTURE CONSISTING ESSENTIALLY OF PARAFFINS, NAPHTHENES WITH PARAFFIN SIDE CHAINS, SINGLE RING AROMATICS WITH PARAFFIN SIDE CHAINS AND SINGLE RING AROMATICS WITH ATTACHED NAPHTHENE RINGS AND BLENDING SAID MIXTURE WITH SAID ASPHALT, SAID MIXTURE HAVING A
Claim 2
Dependent Claim
56 words
A PROESS FOR IMPROVING THE FLOW PROPERTIES OF AN ASPHALT WHICH COMPRISES SEGREGATING FROM A SEPARATE ASPHATIC FRACTION A HYDROCARBON MIXTURE CONSISTING ESSENTIALLY OF PARAFFINS, NAPHTHENES WITH PARAFFIN SIDE CHAINS, SINGLE RING AROMATICS WITH PARAFFIN SIDE CHAINS AND SINGLE RING AROMATICS WITH ATTACHED NAPHTHENE RINGS AND BLENDING SAID MIXTURE WITH SAID ASPHALT, SAID MIXTURE HAVING A
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |