US3483269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefin oligomerization
Assignee: Shell USA Inc
•
Filing: 1967-09-27
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Granted: 1969-12-09
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Expires: 1987-09-27
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Magoon
- 👤 Lawrence G Cannell
- 👤 John H Raley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:51
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/1616; B01J31/02; B01J31/12; B01J31/14; B01J31/143; B01J31/22; B01J31/2282; B01J31/2291; B01J31/2295; C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/32; C07C2/34; B01J21/00; B01J21/12; B01J2231/00; B01J2231/10; B01J2231/20; B01J2531/00; B01J2531/60; B01J2531/62; B01J2531/80; B01J2531/84; B01J2531/847; C07C2531/00; C07C2531/16; C07C2531/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3134824A
Cited
US3379706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |