Patent US3728223A successfully refreshed from Google Patents.
US3728223A
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US
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Production of hyaluronidase from a strain of streptomyces
Assignee: Amano Enzyme Inc
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Filing: 1971-10-08
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Granted: 1973-04-17
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Expires: 1991-10-08
Abstract
Abstract A NOVEL HYALURONIDASE IS PRODUCED BY CULTIVATING A NEW STRAIN OF STREPTOMYCES HYALUROLYTICUS.
Inventors
- 👤 Y Kaneko
- 👤 A Prefecture
- 👤 H Oiwa
- 👤 T Ohya
- 👤 G Amano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:38
CPC Classifications
C; C12; C12N; C12N9/00; Y; Y10; Y10S; Y10S435/00; Y10S435/814; Y10S435/816; Y10S435/8215; Y10S435/822; Y10S435/886
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |