US2852565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for conducting free atom and free radical chain reactions
Assignee: Shell Development Co
•
Filing: 1953-11-27
•
Granted: 1958-09-16
•
Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Nozaki Kenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:06
CPC Classifications
C; C08; C08F; C08F291/00; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN A PROCESS INVOLVING A CHAIN REACTION WHICH PROCEEDS VIA THE FORMATION OF ACTIVE ELEMENTS OF THE GROUP CONSISTING OF FREE ATOMS AND FREE RADICALS, THE IMPROVEMENT WHICH COMPRISES INITIATING THE CHAIN REACTION BY MEANS OF POLYMER FREE RADICALS FOMED BY SUBJECTING A LIQUID MEDIUM CONSISTING OF (1) THE REACTANTS TO TAKE PART IN THE CHAIN REACTION AND (2) A HIGH MOLECULAR WEIGHT LINEAR POLYMER, TO AGITATION WHICH IMPARTS A SHEAR STRESS OF AT LEAST THAT DETERMINED BY THE FORMULA
Claim 2
Dependent Claim
80 words
IN A PROCESS INVOLVING A CHAIN REACTION WHICH PROCEEDS VIA THE FORMATION OF ACTIVE ELEMENTS OF THE GROUP CONSISTING OF FREE ATOMS AND FREE RADICALS, THE IMPROVEMENT WHICH COMPRISES INITIATING THE CHAIN REACTION BY MEANS OF POLYMER FREE RADICALS FOMED BY SUBJECTING A LIQUID MEDIUM CONSISTING OF (1) THE REACTANTS TO TAKE PART IN THE CHAIN REACTION AND (2) A HIGH MOLECULAR WEIGHT LINEAR POLYMER, TO AGITATION WHICH IMPARTS A SHEAR STRESS OF AT LEAST THAT DETERMINED BY THE FORMULA
References Cited (Backward Citations)
US2445970A
Cited
US2609395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |