US3255202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of 2-(acylamidoalkyl)benzimidazoles
Assignee: Union Carbide Corp
•
Filing: 1963-08-23
•
Granted: 1966-06-07
•
Expires: 1983-08-23
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:30
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/06; C07D235/16; C07D235/14; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
PROCESS FOR THE PREPARATION OF A 2-(ACYLAMIDOALKYL)BENZIMIDAZOLE OF THE FORMULA:
Claim 2
Dependent Claim
10 words
PROCESS FOR THE PREPARATION OF A 2-(ACYLAMIDOALKYL)BENZIMIDAZOLE OF THE FORMULA:
References Cited (Backward Citations)
US3004982A
Cited
US3097132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |