US3468057A
Expired / Lapsed
US
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Process for the culture of algae and apparatus therefor
Assignee: IFP Energies nouvelles
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Filing: 1967-05-10
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Granted: 1969-09-23
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Expires: 1987-05-10
Abstract
No abstract record available.
Inventors
- 👤 Andre Buisson
- 👤 Pierre Trambouze
- 👤 Hugo Van Landeghem
- 👤 Michel Rebeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:15
CPC Classifications
A; A01; A01G; A01G33/00; A01G7/00; A01G7/02; C; C12; C12M; C12M21/00; C12M21/02; C12M23/00; C12M23/02; C12M23/18; C12M27/00; C12M27/18; C12M27/20; C12M33/00; C12M33/10; C12M33/14; Y; Y02; Y02A; Y02A40/00; Y02A40/80
Claims Analysis
Total Claims: 0
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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) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |