US3314933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyridylazo compounds
Assignee: Parke Davis and Co LLC
•
Filing: 1963-08-30
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Granted: 1967-04-18
•
Expires: 1983-08-30
Abstract
No abstract record available.
Inventors
- 👤 Edward F Elslager
- 👤 Leslie M Werbel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:43
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/11; C09B43/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A MEMBER OF THE CLASS CONSISTING OF 1-(3(-(5,6,7,8TETRAHYDRO - 4 - (3 - PYRIDYLAZO) - 1 - NAPHTHYL)AMINO) PROPYL)PIPERIDINE COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
23 words
A MEMBER OF THE CLASS CONSISTING OF 1-(3(-(5,6,7,8TETRAHYDRO - 4 - (3 - PYRIDYLAZO) - 1 - NAPHTHYL)AMINO) PROPYL)PIPERIDINE COMPOUNDS OF 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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |