US3031447A
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New nitrofuranacrylic derivatives
Assignee: MASAJIRO UENO
•
Filing: 1959-09-04
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Granted: 1962-04-24
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Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Saikachi Haruo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:28
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/70; C07D307/71; A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/771; A23K; A23K20/00; A23K20/10; A23K20/116; A23K20/121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A NITROFURAN DERIVATUVE OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A NITROFURAN DERIVATUVE OF THE FORMULA:
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) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |