US3510537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of diolefins from internal olefins
Assignee: Atlantic Richfield Co
•
Filing: 1967-10-16
•
Granted: 1970-05-05
•
Expires: 1987-10-16
Abstract
No abstract record available.
Inventors
- 👤 Ming Nan Sheng
- 👤 John G Zajacek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:43
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/122; C; C07; C07C; C07C1/00; C07C1/20; C07C1/24; C07C11/00; C07C11/12; C07C11/173; C07C11/18; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/04; C07D301/06; C07C2527/00; C07C2527/02; C07C2527/053; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/93; Y10S585/934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |