US3320271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 2-diphenyl-3, 4-dihydronaphthalenes and 2, 3-diphenylindenes
Assignee: Pharmacia and Upjohn Co
•
Filing: 1964-06-01
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Granted: 1967-05-16
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Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Lednicer Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:43
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07C; C07C323/00; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/18; C07D263/20; C07D263/24; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C07D317/00; C07D317/08; C07D317/10; C07D317/14; C07D317/18; C07D317/22; C07D317/32; C07D317/34; C07D317/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF: (A) COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF: (A) COMPOUNDS HAVING THE FORMULA
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |