US3350385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of azo compounds by rearrangement of hydrazones
Assignee: Individual
•
Filing: 1964-08-25
•
Granted: 1967-10-31
•
Expires: 1984-08-25
Abstract
No abstract record available.
Inventors
- 👤 Spialter Leonard
- 👤 Gerald L Untereiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:01
CPC Classifications
C; C07; C07C; C07C251/00; C07C251/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
THE SYNTHESIS OF AN AZO COMPOUND BY THE ARRANGEMENT OF A HYDRAZONE OF THE FORMULA
Claim 2
Dependent Claim
15 words
THE SYNTHESIS OF AN AZO COMPOUND BY THE ARRANGEMENT OF A HYDRAZONE 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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |