US3414567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-[2-(5-nitro-2-furyl)-vinyl]-pyridine-n-oxides and processes for preparing thereof
Assignee: Sumitomo Pharma Co Ltd
•
Filing: 1964-11-09
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Granted: 1968-12-03
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Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Minami Shinsaku
- 👤 Fujita Akio
- 👤 Matsumoto Jun-Ichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:02
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |