Patent DE423697C successfully refreshed from Google Patents.
Patent US3452102A successfully refreshed from Google Patents.
US3452102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1,2-diphenyl-6-methoxy-1,2,3,4-tetrahydro-1,2-naphthalenediols
Assignee: Pharmacia and Upjohn Co
•
Filing: 1966-08-17
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Granted: 1969-06-24
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Expires: 1986-08-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel Lednicer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:11
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/587; C07C49/757; A; A01; A01N; A01N33/00; A01N33/02; A01N33/08; A01N33/10; C07C69/00; C07C69/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US2566357A
Cited
US3320271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |