Patent US3214487A successfully refreshed from Google Patents.
US3214487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of inactive olefins
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1963-10-28
•
Granted: 1965-10-26
•
Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Mattox William Judson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:24
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/23; C07C5/25; C07C5/2506; C07C5/2512
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A METHOD FOR CONVERTING A FEED OLEFIN THE MAJOR PROPORTION OF WHICH ARE TYPE V OLFEINS REPRESENTED BY THE FORMULA
Claim 2
Independent Claim
20 words
A METHOD FOR CONVERTING A FEED OLEFIN THE MAJOR PROPORTION OF WHICH ARE TYPE V OLFEINS REPRESENTED BY THE FORMULA
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |