US3523871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of catalase
Assignee: Eisai Co Ltd
•
Filing: 1967-07-13
•
Granted: 1970-08-11
•
Expires: 1987-07-13
Abstract
No abstract record available.
Inventors
- 👤 Yoshitaka Matsuoka
- 👤 Mizuo Yajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:56
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/96
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |