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Patent US3294760A successfully refreshed from Google Patents.
US3294760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidative coupling of organic dithiols
Assignee: General Electric Co
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Filing: 1962-11-21
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Granted: 1966-12-27
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Expires: 1982-11-21
Abstract
No abstract record available.
Inventors
- 👤 Allan S Hay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:03
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE PROCESS OF PRODUCING A SOLUBLE, SULPHUR-CONTAINING POLYMER WHICH COMPRISES REACTING OXYGEN WITH AN ORGANIC DITHIOL, SAID REACTION BEING CARRIED OUT IN A HOMOGENEOUS SOLUTION IN AN ORGANIC SOLVENT OF (A) SAID DITHIOL AND (B) AS THE ACTIVE CATALYST AND OXYGEN-CARRYING INTERMEDIATE, AN AMINE-BASIC CUPRIC SALT COMPLEX IN WHICH THE RATIO OF HYDROXYL GROUPS TO COPPER ATOMS IN THE COMPLEX IS ONE THE ONE, THE AMINE OF SAID COMPLEX BEING FREE OF A N-ARYL SUBSTITUENT.
Claim 2
Dependent Claim
75 words
THE PROCESS OF PRODUCING A SOLUBLE, SULPHUR-CONTAINING POLYMER WHICH COMPRISES REACTING OXYGEN WITH AN ORGANIC DITHIOL, SAID REACTION BEING CARRIED OUT IN A HOMOGENEOUS SOLUTION IN AN ORGANIC SOLVENT OF (A) SAID DITHIOL AND (B) AS THE ACTIVE CATALYST AND OXYGEN-CARRYING INTERMEDIATE, AN AMINE-BASIC CUPRIC SALT COMPLEX IN WHICH THE RATIO OF HYDROXYL GROUPS TO COPPER ATOMS IN THE COMPLEX IS ONE THE ONE, THE AMINE OF SAID COMPLEX BEING FREE OF A N-ARYL SUBSTITUENT.
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |