Patent US3849433A successfully refreshed from Google Patents.
US3849433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4,5,6,7-tetrahydrobenzotriazoles and process of making the same
Assignee: Rhein Chemie Rheinau GmbH
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Filing: 1970-09-24
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Granted: 1974-11-19
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Expires: 1990-09-24
Abstract
Abstract 1. A 4,5,6,7-TETRAHYDROBENZOTRIAZOLE OF THE GROUP CONSISTING OF COMPOUNDS HAVING THE FOLLOWING FORMULAE: 1-R1,R2-4,5,6,7-TETRAHYDRO-1H-BENZOTRIAZOLE AND 2-R1,R2-4,5,6,7-TETRAHYDRO-2H-BENZOTRIAZOLE IN WHICH R1 IS HYDROGEN OR AN ALKYL RAICAL CONTAINING UP TO 18 CARBON ATOMS, AND R2 IS A CARBOXYL OR LOWER ALKOXYCARBONYL RADICAL, AND ACID ADDITION AND QUATERNARY AMMONIUM SALTS THEREOF.
Inventors
- 👤 I Butula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:10
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/149; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/02; C10M2219/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A 4,5,6,7-TETRAHYDROBENZOTRIAZOLE OF THE GROUP CONSISTING OF COMPOUNDS HAVING THE FOLLOWING FORMULAE:
Claim 2
Dependent Claim
12 words
A 4,5,6,7-TETRAHYDROBENZOTRIAZOLE OF THE GROUP CONSISTING OF COMPOUNDS HAVING THE FOLLOWING FORMULAE:
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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |