US3377397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimerization of diolefins
Assignee: Phillips Petroleum Co
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Filing: 1965-10-22
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Granted: 1968-04-09
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Perry L Maxfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:10
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/0234; B01J31/0235; B01J31/0244; B01J31/0201; B01J31/0202; B01J31/0204; B01J31/0215; B01J31/0218; B01J31/0255; B01J31/0257; B01J31/0262; B01J31/0267; B01J31/0272; B01J31/12; B01J31/122; B01J31/14; B01J31/143; B01J31/26; B01J31/28; C; C07; C07C; C07C2/00; C07C2/02; C07C2/50; C07C2/52; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/323; B01J2231/324; B01J2231/326; B01J27/00; B01J27/06; B01J27/128; B01J27/24; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/18; C07C2531/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2600571A
Cited
US2865707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |