US3485748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the selective sorption of paraffins and olefins
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1968-01-18
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Granted: 1969-12-23
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Expires: 1988-01-18
Abstract
No abstract record available.
Inventors
- 👤 Paul E Eberly Jr
- 👤 Dorothy Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:44
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12; C07C7/13; C10; C10G; C10G25/00; C10G25/02; C10G25/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3078643A
Cited
US3360582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |