US3820281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre germination seed treatment
Assignee: American Bioculture Inc
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Filing: 1973-03-02
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Granted: 1974-06-28
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Expires: 1993-03-02
Abstract
Abstract A method treatment of seeds by soaking in an aqueous medium containing the metabolites produced by green algae is disclosed. The culture is harvested during the early logarithmic phases of growth of the algae but after a cell density of about 1 X 105 cells per milliliter is reached. Rice, corn, and other seeds such as lettuce and barley treated with the invention exhibit more rapid root initiation, faster root establishment and larger quantities of roots per seedling. Increases in shoot weight and length also are observed.
Inventors
- 👤 E Bigler
- 👤 T Camp
- 👤 P Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:40
CPC Classifications
A; A01; A01G; A01G33/00; C; C12; C12N; C12N1/00; C12N1/12; C12N1/125; C12P; C12P1/00; C12R; C12R2001/00; C12R2001/89; Y; Y10; Y10S; Y10S47/00; Y10S47/09
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
13 words
A method according to claim 1 wherein the alga comprises the genus Chlorella.
Claim 2
Dependent Claim
12 words
A method according to claim 2 wherein the alga comprises Chlorella pyrenoidosa.
Claim 3
Dependent Claim
21 words
A method according to claim 1 wherein the seeds are soaked for a period of about 18 to about 24 hours.
Claim 4
Dependent Claim
19 words
A method according to claim 2 wherein the culture is harvested prior to the late logarithmic stage of growth.
Claim 5
Dependent Claim
19 words
A method according to claim 1 further comprising the step of light shielding the harvested culture prior to use.
Claim 6
Dependent Claim
19 words
A method according to claim 6 further comprising maintaining the harvested culture below about 30* C prior to use.
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |