US3645040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unbalanced culture method of algae production
Assignee: ERA Inc
•
Filing: 1970-07-16
•
Granted: 1972-02-29
•
Expires: 1990-07-16
Abstract
Abstract Interruption of algal-bacterial symbiosis by high-intensity light permits increased algae production.
Inventors
- 👤 Jay E Ort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:13
CPC Classifications
A; A01; A01G; A01G33/00; C; C02; C02F; C02F1/00; C02F1/30; C02F1/32; C02F3/00; C02F3/32; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y02W; Y02W10/00; Y02W10/30; Y02W10/37
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
20 words
A process according to claim 1 wherein the algae are selected from the group consisting of Chlorella Scenedesmus and Euglena.
Claim 2
Dependent Claim
17 words
A process according to claim 2 comprising decarbonating resulting unbalanced culture and flocculating thus-primed culture with lime.
Claim 3
Dependent Claim
17 words
A process according to claim 3 wherein decarbonation is effected in a shallow pond by bright sunlight.
Claim 4
Dependent Claim
17 words
A process according to claim 1 wherein the bacterial disinfection comprises at least 85 percent coliform reduction.
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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |