US2951797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitizers in photoxidation
Assignee: Monsanto Chemicals Ltd
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Filing: 1957-11-13
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Granted: 1960-09-06
•
Expires: 1977-11-13
Abstract
No abstract record available.
Inventors
- 👤 Dexter B Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:53
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/22; Y; Y10; Y10S; Y10S204/00; Y10S204/902; Y10S204/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PROCESS FOR INTRODUCING OXYGEN INTO AN ORGANIC COMPOUND WHICH COMPRISES SIMULTANEOUSLY SUBJECTING AN ORGANIC COMPOUND CAPABLE OF ADDING OXYGEN UNDER THE INFLUENCE OF LIGHT AND A PHOTOSENSITIZING CATALYST TO LIGHT IRRADIATION AND CONTACT WITH OXYGEN AND A PORPHYRIN CATALYST SELECTED FROM THE CLASS CONSISTING OF TETRABENZOMONOAZA- AND TETRABENZODIAZAPORPHYRINS, THEREBY INTRODUCING OXYGEN INTO THE MOLECLUE OF THE SAID ORGANIC COMPOUND WITHOUT DESTRUCTION THEREOF.
Claim 2
Dependent Claim
63 words
A PROCESS FOR INTRODUCING OXYGEN INTO AN ORGANIC COMPOUND WHICH COMPRISES SIMULTANEOUSLY SUBJECTING AN ORGANIC COMPOUND CAPABLE OF ADDING OXYGEN UNDER THE INFLUENCE OF LIGHT AND A PHOTOSENSITIZING CATALYST TO LIGHT IRRADIATION AND CONTACT WITH OXYGEN AND A PORPHYRIN CATALYST SELECTED FROM THE CLASS CONSISTING OF TETRABENZOMONOAZA- AND TETRABENZODIAZAPORPHYRINS, THEREBY INTRODUCING OXYGEN INTO THE MOLECLUE OF THE SAID ORGANIC COMPOUND WITHOUT DESTRUCTION THEREOF.
References Cited (Backward Citations)
US2165130A
Cited
US2732337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |