US3013068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of ethylenic compounds from free radicals and cupric salts
Assignee: Shell USA Inc
•
Filing: 1958-06-30
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Granted: 1961-12-12
•
Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Mare Harold E De La
- 👤 Jay K Kochi
- 👤 Frederick F Rust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:02
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/42; C07C5/50; C07C1/00; C07C1/20; C07C5/32; C07C5/327; C07C5/333; C07C51/00; Y; Y10; Y10S; Y10S204/00; Y10S204/902; Y10S204/903; Y10S204/904; Y10S204/912; Y10S204/913; Y10S585/00; Y10S585/929; Y10S585/942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A METHOD FOR PRODUCING AN ETHYLENIC COMPOUND WHICH COMPRISES GENERATING IN THE LIQUID PHASE A FREE RADICAL HAVING A HYDROGEN ATOM LINKED TO A SATURATED CARBON ATOMS WHICH IS DIRECTLY ATTACHED TO A CARBON ATOM HAVING AN UPAIRED ELECTRON IN THE PRESENCE OF A SOLUBLE CUPRIC SALT.
Claim 2
Independent Claim
47 words
A METHOD FOR PRODUCING AN ETHYLENIC COMPOUND WHICH COMPRISES GENERATING IN THE LIQUID PHASE A FREE RADICAL HAVING A HYDROGEN ATOM LINKED TO A SATURATED CARBON ATOMS WHICH IS DIRECTLY ATTACHED TO A CARBON ATOM HAVING AN UPAIRED ELECTRON IN THE PRESENCE OF A SOLUBLE CUPRIC SALT.
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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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |