Patent US2671805A successfully refreshed from Google Patents.
US2671805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Basically substituted o-arylamino-benzamides
Assignee: GD Searle LLC
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Filing: 1952-07-02
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Granted: 1954-03-09
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Expires: 1972-07-02
Abstract
No abstract record available.
Inventors
- 👤 Krimmel Carl Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:14
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF THE COMPOUNDS OF THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF THE COMPOUNDS OF THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US2073100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |