Patent US2832210A successfully refreshed from Google Patents.
Patent US3840529A successfully refreshed from Google Patents.
US3840529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-(1-(3-substituted-1-propenyl)-4-piperidyl)-2-oxobenzimidazolines
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1972-08-23
•
Granted: 1974-10-08
•
Expires: 1992-08-23
Abstract
Abstract WHEREIN R1 IS A HYDROGEN ATOM, A HALOGEN ATOM, A LOWER ALKYL, LOWER ALKOXY, NITRO, LOWER ALKANOYLAMINE OR TRIFLUOROMETHYL GROUP; R2 IS A HYDROGEN OR HALOGEN ATOM; R3 IS A HYDROGEN ATOM OR A LOWER ALKANOYL GROUP; R4 IS A HYDROGEN ATOM, A HALOGEN ATOM OR A LOWER ALKYL GROUP; AND X IS AN OXYGEN ATOM, A SULFUR ATOM, A SULFINYL OR SULFONYL GROUP. 2-(O=),3-R3,R4-BENZIMIDAZOLINE 1-(1-((R1,R2-PHENYL)-X-CH2-CH=CH-)-PIPERIDIN-4-YL-), 1. A PROPENYLAMINE DERIVATIVE OF THE FORMULA
Inventors
- 👤 I Maruyama
- 👤 M Nakao
- 👤 K Sasajima
- 👤 H Yamamoto
- 👤 I Yanagihara
- 👤 S Inaba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:44
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; A; A61; A61P; A61P25/00; A61P25/18; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A PROPENYLAMINE DERIVATIVE OF THE FORMULA
Claim 2
Dependent Claim
6 words
A PROPENYLAMINE DERIVATIVE 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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |