US4394149A
Expired / Lapsed
US
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Plant nutriment compositions and method of their application
Assignee: Liposome Technology Inc
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Filing: 1980-05-13
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Granted: 1983-07-19
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Expires: 2000-05-13
Abstract
Abstract The disclosure is of the use of plant nutriments encapsulated in synthetic lipid vesicles to nourish plants. SP CROSS-REFERENCE TO RELATED APPLICATION This application is a Continuation-in-Part of our copending application Ser. No. 881,116 filed Feb. 24, 1978 and now U.S. Pat. No. 4,235,871.
Inventors
- 👤 Francis C. Szoka, Jr.
- 👤 Demetrios P. Papahadjopoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:55
CPC Classifications
C; C05; C05C; C05C9/00; C05C9/005; A; A61; A61K; A61K9/00; A61K9/10; A61K9/127; C05G; C05G5/00; C05G5/20; C05G5/27; Y; Y10; Y10S; Y10S71/00; Y10S71/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
68 words
A method of providing nutriments to agricultural plants possessing plant cells having cell walls and cell membranes, which comprises; applying to the plant a nutritional amount of a plant nutriment, encapsulated in a lipid vesicle, whereby the lipid vesicle encapsulating the plant nutriment is taken up by the plant and passes into the plant cell where the lipid vesicle is broken down and releases the encapsulated plant nutriment.
Claim 2
Independent Claim
68 words
A method of providing nutriments to agricultural plants possessing plant cells having cell walls and cell membranes, which comprises; applying to the plant a nutritional amount of a plant nutriment, encapsulated in a lipid vesicle, whereby the lipid vesicle encapsulating the plant nutriment is taken up by the plant and passes into the plant cell where the lipid vesicle is broken down and releases the encapsulated plant nutriment.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein the lipid vesicles are in a dispersible form with a dispersible agriculturally acceptable carrier.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein said applying is by spray.
Claim 5
Dependent Claim
10 words
The method of claim 1 wherein the nutriment is urea.
Claim 6
Dependent Claim
20 words
The method of claim 1 wherein the nutriment comprises ferrous ethylenediamine tetraacetic acid complex and zinc ethylenediamine tetraacetic acid complex.
Claim 7
Dependent Claim
11 words
The method of claim 1 wherein the nutriment is a fertilizer.
Claim 8
Dependent Claim
19 words
The method of claim 1 wherein the lipid vesicles have an average diameter of from 2000 to 4000 angstroms.
Claim 9
Dependent Claim
13 words
The method of claim 7 wherein the lipid vesicles are oligolamellar lipid vesicles.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |