Patent US4282522A successfully refreshed from Google Patents.
US2992166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diagnostic composition
Assignee: Cilag Chemie Ltd
•
Filing: 1958-11-04
•
Granted: 1961-07-11
•
Expires: 1978-11-04
Abstract
No abstract record available.
Inventors
- 👤 Sigg Walter
- 👤 Kulling Emil
- 👤 Schafflutzel Niklaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:15
CPC Classifications
A; A61; A61B; A61B5/00; G; G01; G01N; G01N31/00; G01N31/22; G01N31/221; G01N33/00; G01N33/48; G01N33/50; G01N33/84; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/047; G03C2001/0471
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A DIAGNOSTIC COMPOSITION FOR ORAL ADMINISTRATION TO DETERMINE PASTRIC ACIDITY, WHICH COMPRISES 3-PHENYLAZO2,6-DIAMINO-PYRIDINE AND ZEIN.
Claim 2
Dependent Claim
15 words
A DIAGNOSTIC COMPOSITION FOR ORAL ADMINISTRATION TO DETERMINE PASTRIC ACIDITY, WHICH COMPRISES 3-PHENYLAZO2,6-DIAMINO-PYRIDINE AND ZEIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |