US2874177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel complex salt of 4-aminosalicylic acid and processes for producing the same
Assignee: Gohei Tanabe and Co Ltd
•
Filing: 1956-06-08
•
Granted: 1959-02-17
•
Expires: 1976-06-08
Abstract
No abstract record available.
Inventors
- 👤 Hayano Kyoji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:52
CPC Classifications
A; A61; A61K; A61K33/00; A61K33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
AN O-(CHLOROPHENYL) O-LOWER ALKYL PHOSPHORO(ISOTHIOCYANATIDO) THIOATE HAVING THE FORMULA
Claim 2
Dependent Claim
9 words
AN O-(CHLOROPHENYL) O-LOWER ALKYL PHOSPHORO(ISOTHIOCYANATIDO) THIOATE HAVING THE FORMULA
References Cited (Backward Citations)
US2686800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |