US2691041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(tertiary-aminoalkyl)-2-substituted-4-nitrobenzamides and their salts
Assignee: STWB Inc
•
Filing: 1953-05-21
•
Granted: 1954-10-05
•
Expires: 1973-05-21
Abstract
No abstract record available.
Inventors
- 👤 Raymond O Clinton
- 👤 Stanley C Laskowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:23
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
A MEMBER OF THE GROUP CONSISTING OF AN N(TERTIARY-AMINOALKYL) -2-SUBSTITUTED-4-NITROBENZAMIDE HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
A MEMBER OF THE GROUP CONSISTING OF AN N(TERTIARY-AMINOALKYL) -2-SUBSTITUTED-4-NITROBENZAMIDE HAVING THE FORMULA
Claim 3
Dependent Claim
5 words
AN N-(DIALKYLAMINOALKYL)-4-NITRO-2-ALKOXYBEZAMIDE HAVING THE FORMULA
Claim 4
Dependent Claim
5 words
AN N-(DIALKYLAMINOALKYL)-4-NITRO-2-ALKOXYBEZAMIDE HAVING THE FORMULA
References Cited (Backward Citations)
US2551647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |