Patent US4208441A successfully refreshed from Google Patents.
Patent US5282225A successfully refreshed from Google Patents.
Patent US2950237A successfully refreshed from Google Patents.
US2950237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoxidation processes utilizing novel catalysts
Assignee: Monsanto Chemicals Ltd
•
Filing: 1957-11-13
•
Granted: 1960-08-23
•
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 22:56
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
53 words
A PROCESS FOR INTRODUCING OXYGEN INTO AN ORGANIC COMPOUND WITH COMPRISES SIMULTANEOUSLY SUBJECTING AN ORGANIC COMPOUND COAPABLE OF ADDING OXYGEN UNDER THE INFLUENCE OF LIGHT AND A PHOTOSENSITIZING CATALYST TO LIGHT IRRADIATION AND CONTACT WITH OXYGEN AND AN A,B,Y,O-TETRAARYLPORPHYRIN, THEREBY INTRODUCING OXYGEN INTO THE MOLECULE OF THE SAID ORGANIC COMPOUNDS WITHOUT DESTRUCTION THEREOF.
Claim 2
Dependent Claim
53 words
A PROCESS FOR INTRODUCING OXYGEN INTO AN ORGANIC COMPOUND WITH COMPRISES SIMULTANEOUSLY SUBJECTING AN ORGANIC COMPOUND COAPABLE OF ADDING OXYGEN UNDER THE INFLUENCE OF LIGHT AND A PHOTOSENSITIZING CATALYST TO LIGHT IRRADIATION AND CONTACT WITH OXYGEN AND AN A,B,Y,O-TETRAARYLPORPHYRIN, THEREBY INTRODUCING OXYGEN INTO THE MOLECULE OF THE SAID ORGANIC COMPOUNDS WITHOUT DESTRUCTION THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |