US3094534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing novel cyclic amines
Assignee: Siegfried AG
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Filing: 1961-03-06
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Granted: 1963-06-18
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Griot Rudolf
- 👤 Wagner-Jauregg Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:13
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/52
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
33 words
A PROCESS FOR PREPARING CYCLIC AMINES, WHICH COMPRISES TREATING $2-CYCLOPHENTENYL ACETONE OXIME IN ACETIC ACID WITH ZINC DUST AT ELEVATED TEMPERATURES AND RECOVERING AND SEPARATING THE AMINES THUS PRODUCED FROM THE REACTION MIXTURE.
Claim 2
Dependent Claim
33 words
A PROCESS FOR PREPARING CYCLIC AMINES, WHICH COMPRISES TREATING $2-CYCLOPHENTENYL ACETONE OXIME IN ACETIC ACID WITH ZINC DUST AT ELEVATED TEMPERATURES AND RECOVERING AND SEPARATING THE AMINES THUS PRODUCED FROM THE REACTION MIXTURE.
Claim 3
Dependent Claim
29 words
A COMPOUND HVING TLHE EMPIRICAL FORMULA C8H13N PRODUCED BY THE PROCSS OF CLAIM 1. 0. A COMPOUND HAVING THE EMPIRICAL FORMULA C8H13NO PRODUCED BY THE PROCESS OF CLAIM 1.
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |