Patent US2843597A successfully refreshed from Google Patents.
US2843597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermediate and process for producing 5-tetradecylbenzimidazolone
Assignee: Merck and Co Inc
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Filing: 1956-07-31
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Granted: 1958-07-15
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Expires: 1976-07-31
Abstract
No abstract record available.
Inventors
- 👤 Robert L Clark
- 👤 Arsenio A Pessolano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:27
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
5-MYRISTOYLBENZIMIDAZOLONE REPRESENTED BY THE FOLLOWING STRUCTURE:
Claim 2
Dependent Claim
6 words
5-MYRISTOYLBENZIMIDAZOLONE REPRESENTED BY THE FOLLOWING STRUCTURE:
Claim 3
Dependent Claim
42 words
THE PROCESS WHICH COMPRISES REACTING BENZIMIDAZOLONE WITH MYRISTOYL CHLORIDE IN THE PRESENCE OF CARBON DISULFIDE AND ALUMINUM CHLORIDE TO FORM NYRISTOYL BENZIMIDAZOLONE AND REACTING THE LATTER COMPOUND WITH HYDROGEN AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF COPPER CHROMITE TO FORM 5-TETRADECYLBENZIMIDAZOLONE.
Claim 4
Dependent Claim
42 words
THE PROCESS WHICH COMPRISES REACTING BENZIMIDAZOLONE WITH MYRISTOYL CHLORIDE IN THE PRESENCE OF CARBON DISULFIDE AND ALUMINUM CHLORIDE TO FORM NYRISTOYL BENZIMIDAZOLONE AND REACTING THE LATTER COMPOUND WITH HYDROGEN AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF COPPER CHROMITE TO FORM 5-TETRADECYLBENZIMIDAZOLONE.
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |