Patent US1653925A successfully refreshed from Google Patents.
Patent US3264320A successfully refreshed from Google Patents.
US3264320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 3, 4-oxadiazole-2, 5-diyl-bis-benzhydrazide and its preparation
Assignee: Monsanto Co
•
Filing: 1965-11-08
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Granted: 1966-08-02
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Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 Preston Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:20
CPC Classifications
C; C07; C07D; C07D271/00; C07D271/02; C07D271/10; C07D271/107; C08; C08G; C08G73/00; C08G73/06; C08G73/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
AS A NEW COMPOSITION OF MATTER
Claim 2
Dependent Claim
6 words
AS A NEW COMPOSITION OF MATTER
Claim 3
Dependent Claim
7 words
A PROCESS FOR THE PREPARATION OF 2,5-BIS(M-BENZOYLHYDRAZINE)-1,3,4-OXADIAZOLE
Claim 4
Dependent Claim
7 words
A PROCESS FOR THE PREPARATION OF 2,5-BIS(M-BENZOYLHYDRAZINE)-1,3,4-OXADIAZOLE
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |