Patent US3388380A successfully refreshed from Google Patents.
US3320693A
Expired / Lapsed
US
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Method of industral cultivation of unicellular green algae such as chlorella
Assignee: Kk
•
Filing: 1965-08-16
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Granted: 1967-05-23
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Expires: 1985-08-16
Abstract
No abstract record available.
Inventors
- 👤 Shirota Minoru
- 👤 Endo Hiroshi
- 👤 Nakajima Kei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
A; A01; A01G; A01G33/00; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/946
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2949700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |