US3027408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(benzylcarbamyl)-ethyl substituted oxalic acid hydrazide
Assignee: Pharmacia and Upjohn Co
•
Filing: 1960-03-18
•
Granted: 1962-03-27
•
Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Szmuszkovicz Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:24
CPC Classifications
C; C07; C07C; C07C243/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA
Claim 2
Dependent Claim
7 words
A COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA
References Cited (Backward Citations)
US2835703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |