US3328368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaving s-s bonds in organic compounds using metal organic compounds
Assignee: Arthur D Little Inc
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Filing: 1963-05-20
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Granted: 1967-06-27
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Wang Chi Hua
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:36
CPC Classifications
C; C07; C07C; C07C319/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
METHOD OF CLEAVING THE S-S BOND IN AN ORGANIC DISULFIDE COMPRISING THE STEP OF MIXING TOGETHER UNDER SUBSTANTIALLY OXYGEN-FREE CONDITIONS AND AT SUBSTANTIALLY ROOM TEMPERATURE (A) A SOLUTION OF AN ORGANOMETALLIC COMPOUND IN A VINYL MONOMER, SAID COMPOUND BEING EITHER A B-DIKETONE CHELATE OR A DICYCLOPENTADIENYL DERIVATIVE OF A TRANSITION METAL CAPABLE OF UNDERGOING CHANGE IN VALENCE STATE BY A SINGLE ELECTRON TRANSFER PROCESS, AND (B) AN ORGANIC DISULFIDE, SELECTED FROM THE GROUP CONSISTING OF DIARYL DISULFIDES, SUBSTITITED DIARYL DISULFIDES, DIALKYL DISULFIDES AND CYCLIC DISULFIDES, IN ANOTHER LIQUID MEDIUM WHICH IS AT LEAST A PARTIAL SOLVENT THEREFOR AND WHICH IS MISCIBLE WITH SAID SOLUTION.
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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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |