US3386888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resolution of racemic amino acids
Assignee: Tanabe Pharma Corp
•
Filing: 1965-07-15
•
Granted: 1968-06-04
•
Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Chibata Ichiro
- 👤 Tosa Tetsuya
- 👤 Endo Noriko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:27
CPC Classifications
C; C12; C12P; C12P13/00; C12P13/04; Y; Y10; Y10S; Y10S435/00; Y10S435/813
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA659059A
Cited
US3126324A
Cited
US2717852A
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US3167485A
Cited
US3252948A
Cited
US3243356A
Cited
US3278392A
Cited
US3282702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |