Patent US3001140A successfully refreshed from Google Patents.
US2700029A
Expired / Lapsed
US
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Process using vinyl hydroquin one polymers
Assignee: Individual
•
Filing: 1949-12-31
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Granted: 1955-01-18
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Expires: 1969-12-31
Abstract
No abstract record available.
Inventors
- 👤 Harold G Cassidy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:30
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/02; Y; Y10; Y10S; Y10S436/00; Y10S436/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN OXIDATION-REDUCTION PROCESS COMPRISING PROVIDING A SUBSTANCE WHICH COMPRISES A SYNTHETIC ORGANIC POLYMER OF ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL COMPRISING VINYLHYDROQUINONE, WHICH POLYMER HAS STRUCTURALLY REPEATED GROUPS WHICH ARE REVERSIBLY OXIDIZABLE AND REDUCIBLE AND IS THUS CAPABLE OF EXISTENCE IN AN OXIDIZED STATE AND IN A REDUCED STATE, CONVERTING SAID POLYMER TO A STARTING STATE CORRESPONDING ESSENTIALLY TO ONE OF SAID STATES, CONTACTING THE THUS-CONVERTED POLYMER WITH A LIQUID CONTAINING A SOLUTE, EFFECTING A TRANSFER OF ELECTRONS BETWEEN SAID SOLUTE AND SAID POLYMER WITHOUT SUBSTANTIALLY DEGRADATION OF THE POLYMER, SEPARATING SAID LIQUID AND POLYMER, AND RECONVERTING SAID POLYMER TO THE SAID STARTING STATE.
Claim 2
Dependent Claim
102 words
AN OXIDATION-REDUCTION PROCESS COMPRISING PROVIDING A SUBSTANCE WHICH COMPRISES A SYNTHETIC ORGANIC POLYMER OF ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL COMPRISING VINYLHYDROQUINONE, WHICH POLYMER HAS STRUCTURALLY REPEATED GROUPS WHICH ARE REVERSIBLY OXIDIZABLE AND REDUCIBLE AND IS THUS CAPABLE OF EXISTENCE IN AN OXIDIZED STATE AND IN A REDUCED STATE, CONVERTING SAID POLYMER TO A STARTING STATE CORRESPONDING ESSENTIALLY TO ONE OF SAID STATES, CONTACTING THE THUS-CONVERTED POLYMER WITH A LIQUID CONTAINING A SOLUTE, EFFECTING A TRANSFER OF ELECTRONS BETWEEN SAID SOLUTE AND SAID POLYMER WITHOUT SUBSTANTIALLY DEGRADATION OF THE POLYMER, SEPARATING SAID LIQUID AND POLYMER, AND RECONVERTING SAID POLYMER TO THE SAID STARTING STATE.
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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) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |