Patent US2933532A successfully refreshed from Google Patents.
US2933532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted 1-phenyl-2-hydrazino-propanes
Assignee: Pharmacia and Upjohn Co
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Filing: 1959-06-26
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Granted: 1960-04-19
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Expires: 1979-06-26
Abstract
No abstract record available.
Inventors
- 👤 Edward L Schumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:51
CPC Classifications
C; C07; C07C; C07C243/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF (A) A COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
15 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF (A) A COMPOUND HAVING THE GENERAL 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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |