Patent US2050737A successfully refreshed from Google Patents.
US2854792A
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Method and apparatus for propagating algae culture
Assignee: Veolia WTS Systems USA Inc
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Filing: 1956-09-20
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Granted: 1958-10-07
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Expires: 1976-09-20
Abstract
No abstract record available.
Inventors
- 👤 Juda Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:25
CPC Classifications
A; A01; A01G; A01G33/00; C; C12; C12M; C12M21/00; C12M21/02; C12M23/00; C12M23/02; C12M23/38; C12M29/00; C12M29/18; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y10; Y10S; Y10S435/00; Y10S435/813
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
IN THE PHOTOSYNTHESIS OF A CULTURE OF MICROORGANISMS IN A NUTRIENT MEDIUM INCLUDING NUTRIENT SALTS FOR MICROOGANISMS, AIR AND CARBON DIOXIDE, THE STEP OF CONTINOUSLY FORMING A FINE DISPERSION OF AT LEAST A PORTION OF SAID CULTURE IN THE PRESENCE OF LIGHT UNTIL A DESIRED PREDETERMINED DENSITY OF SAID MICROOGANISM IS OBTAINED.
Claim 2
Dependent Claim
52 words
IN THE PHOTOSYNTHESIS OF A CULTURE OF MICROORGANISMS IN A NUTRIENT MEDIUM INCLUDING NUTRIENT SALTS FOR MICROOGANISMS, AIR AND CARBON DIOXIDE, THE STEP OF CONTINOUSLY FORMING A FINE DISPERSION OF AT LEAST A PORTION OF SAID CULTURE IN THE PRESENCE OF LIGHT UNTIL A DESIRED PREDETERMINED DENSITY OF SAID MICROOGANISM IS OBTAINED.
References Cited (Backward Citations)
US2732662A
Cited
US1654379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |