Patent US3408366A successfully refreshed from Google Patents.
US3408366A
Expired / Lapsed
US
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Process for the production of ortho-hydroxybenzophenones and xanthones
Assignee: General Electric Co
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Filing: 1967-08-11
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Granted: 1968-10-29
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Expires: 1987-08-11
Abstract
No abstract record available.
Inventors
- 👤 Dwain M White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:25
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/51; C07C45/54; C07C47/00; C07C47/52; C07C47/575; C07D; C07D311/00; C07D311/02; C07D311/78; C07D311/80; C07D311/82; C07D311/84; C07D311/86; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2661354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |