Patent US3160665A successfully refreshed from Google Patents.
US3160665A
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Hydroxy-benzophenones
Assignee: BASF Schweiz AG
•
Filing: 1958-02-28
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Granted: 1964-12-08
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Expires: 1978-02-28
Abstract
No abstract record available.
Inventors
- 👤 Siegrist Adolf Emil
- 👤 Maeder Erwin
- 👤 Duennenberger Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:11
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; C; C07; C07C; C07C309/00; C07C45/00; C07C45/45; C07C45/46; C07C49/00; C07C49/76; C07C49/82; C07C49/83; C07C49/84; C08; C08K; C08K5/00; C08K5/04; C08K5/07; C08K5/13; C08K5/132; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A HYDROXY KETONE OF THE FORMULA
Claim 2
Dependent Claim
6 words
A HYDROXY KETONE OF THE FORMULA
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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) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |