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US2725677A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of effectuating high density mass culture of algae or other microorganisms

Assignee: Carnegie Institution for Science
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Filing: 1952-01-16
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Granted: 1955-12-06
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Expires: 1972-01-16
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Abstract

No abstract record available.

Inventors

  • 👤 Myers Jack Edgar

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 23:12
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: 1
Claim 1
Independent Claim 27 words
A METHOD OF EFFECTUATING HIGH DENSITY MASS CULTURE OF CHLORELLA IN A NUTRIENT MEDIUM CONTAINING A TOXIC QUANTITY OF TRACE ELEMENTS COMPRISING ADDING EDTA TO SAID MEDIUM.

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) 1958-12-05 1959-06-06 1959-12-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1962-12-05 1963-06-06 1963-12-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1966-12-05 1967-06-06 1967-12-06 $7700.00 Window Closed / Lapsed

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