Patent US3047632A successfully refreshed from Google Patents.
US3047632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing tris-(4-methylmercaptophenyl)-carbinol compounds
Assignee: Individual
•
Filing: 1961-08-28
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Granted: 1962-07-31
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Expires: 1981-08-28
Abstract
No abstract record available.
Inventors
- 👤 Harbort Ludwig
- 👤 Rahn Hans-Jurgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:10
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/11; C07C37/20; C07C319/00; C07C319/02; C07C319/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PROCESS OF PREPARING TRIS-(4-METHYLMERCAPTOPHENYL)-CARBINOL COMPOUNDS AND ITS DERIVATIVES WHICH COMPRISES SUBJECTING TO DIAZOTIZATION A CARBENIUM CHLORIDE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
21 words
A PROCESS OF PREPARING TRIS-(4-METHYLMERCAPTOPHENYL)-CARBINOL COMPOUNDS AND ITS DERIVATIVES WHICH COMPRISES SUBJECTING TO DIAZOTIZATION A CARBENIUM CHLORIDE COMPOUND 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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |