Patent US3392212A successfully refreshed from Google Patents.
US3392212A
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Process for producing dimethylbutane from pentane
Assignee: Standard Oil Co
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Filing: 1967-03-01
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Granted: 1968-07-09
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Expires: 1987-03-01
Abstract
No abstract record available.
Inventors
- 👤 Ouville Edmond L D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:48
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/14; C07C9/16; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; C07C6/00; C07C6/08; C07C6/10; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/901; Y10S585/949; Y10S585/952
Claims Analysis
Total Claims: 0
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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) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |