US3038928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-acyl derivatives of 1-cyanoformimidic acid hydrazide
Assignee: Wyeth Holdings LLC
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Filing: 1960-05-06
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Granted: 1962-06-12
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Expires: 1980-05-06
Abstract
No abstract record available.
Inventors
- 👤 Morin Lucille Theresa
- 👤 Matsuda Ken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:38
CPC Classifications
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Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A COMPOUND, 1-CYANOFORMIMIDIC ACID (2-ACYLHYDRAZIDE), SAID ACYL SUBSTITUENT BEING SELECTED FROM THE GROUP CONSISTING OF ACETYL, BUTYRYL, ACRYLYL, BENZOYL, NAPHTHOYL AND HALOGEN-SUBSTITUENT BENZOYL, SAID HALOGEN HAVING AN ATOMIC WEIGHT EQUAL TO AT LEAST ABOUT 35.
Claim 2
Dependent Claim
35 words
A COMPOUND, 1-CYANOFORMIMIDIC ACID (2-ACYLHYDRAZIDE), SAID ACYL SUBSTITUENT BEING SELECTED FROM THE GROUP CONSISTING OF ACETYL, BUTYRYL, ACRYLYL, BENZOYL, NAPHTHOYL AND HALOGEN-SUBSTITUENT BENZOYL, SAID HALOGEN HAVING AN ATOMIC WEIGHT EQUAL TO AT LEAST ABOUT 35.
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) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |