Patent US2658310A successfully refreshed from Google Patents.
US2658310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for the production of photosynthetic microorganisms, particularly algae
Assignee: Carnegie Institution for Science
•
Filing: 1950-12-22
•
Granted: 1953-11-10
•
Expires: 1970-12-22
Abstract
No abstract record available.
Inventors
- 👤 Paul M Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
A; A01; A01G; A01G33/00; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y10; Y10S; Y10S435/00; Y10S435/813; Y10S435/819
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
IN A PROCESS FOR THE PRODUCTION OF PHOTOSYNTHETIC MICROORGANISMS, THE STEPS OF MAINTAINING A BODY OF A NUTRIENT-CONTAINING AQUEOUS MEDIUM, CAUSING CELLS OF A PHOTOSYNTHETIC MICROORGANISM TO GROW IN SAID MEDIUM WHILE THE BODY
Claim 2
Dependent Claim
34 words
IN A PROCESS FOR THE PRODUCTION OF PHOTOSYNTHETIC MICROORGANISMS, THE STEPS OF MAINTAINING A BODY OF A NUTRIENT-CONTAINING AQUEOUS MEDIUM, CAUSING CELLS OF A PHOTOSYNTHETIC MICROORGANISM TO GROW IN SAID MEDIUM WHILE THE BODY
References Cited (Backward Citations)
US2062755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |