Patent US3272841A successfully refreshed from Google Patents.
US3272841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-(aminoalkoxyphenyl)-alpha'-nitrostilbene compounds
Assignee: Parke Davis and Co LLC
•
Filing: 1964-03-23
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Granted: 1966-09-13
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Expires: 1984-03-23
Abstract
No abstract record available.
Inventors
- 👤 Wald Horace A De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:35
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; Y; Y10; Y10S; Y10S424/00; Y10S424/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A MEMBER OF THE CLASS CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
11 words
A MEMBER OF THE CLASS CONSISTING OF COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US3151148A
Cited
US2478243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |