US3600428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-phenyl-2-acyloxy-6-methoxy-3-4-dihydronaphthalenes
Assignee: Pharmacia and Upjohn Co
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Filing: 1969-01-14
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Granted: 1971-08-17
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Expires: 1989-01-14
Abstract
Abstract NOVEL 1 - PHENYL - 2 - ACYLOXY - 6 - METHOXY - 3,4 - DIHYDRONAPHTHALENES OF THE FORMULA: 1-X-(PHENYLENE)-,2-R2-COO-,6-H3C-O-,3,4-DIHYDRONAPHTHALENE WHEREIN X IS HYDROGEN, HALOGEN, TRIFLUOROMETHYL OR LOWERALKYL AND R2 IS AN ARYL RADICAL OF 6 TO 10 CARBON ATOMS, INCLUSIVE. THESE COMPOUNDS ARE USEFUL INTERMEDIATES IN THE PREPARATION OF THE CORRESPONDING 1,2-DIPHENYL-6METHOXY - 1,2,3,4 - TETRAHYDRO-1,2-NAPHTHALENEDIOLS.
Inventors
- 👤 Daniel Lednicer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:30
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/757; C07C69/00; C07C69/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |