US3540850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test for the early diagnosis of phenylketonuria,leucinosis and hypervalinemia
Assignee: Merck KGaA
•
Filing: 1967-07-17
•
Granted: 1970-11-17
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Expires: 1987-07-17
Abstract
No abstract record available.
Inventors
- 👤 Herbert Halpaap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:20
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/64; G01N33/68; G01N33/6803; G01N33/6806; G01N33/6812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3399971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |