US3799755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of a plant substrate body
Assignee: Individual
•
Filing: 1973-04-25
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Granted: 1974-03-26
•
Expires: 1993-04-25
Abstract
Abstract PEAT AND/OR SOIL IS DRIED TO A MAXIMUM WATER CONTENT OF 8-14%, BY WEIGHT, AND THE DRIED PEAT AND/OR SOIL IS MIXED WITH A LIQUID COMPOSITION OF REACTANTS FORMING AN ELASTIC POLYURETHANE FOAM. THE RESULTANT FOAM CONTAINS 20% TO 60%, BY WEIGHT, OF THE PEAT AND/OR SOIL AS AN EFFECTIVE PLANT GROWTH MEDIUM SUPPORTING THE ROOT STRUTURE OF A PLANT PLACED IN THE SUBSTRATE FOAM.
Inventors
- 👤 D Rack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:20
CPC Classifications
C; C05; C05F; C05F11/00; C05F11/02; A; A01; A01G; A01G24/00; A01G24/20; A01G24/28; A01G24/30; A01G24/40; A01G24/42; A01G24/48; Y; Y10; Y10S; Y10S71/00; Y10S71/90; Y10S71/904
Claims Analysis
Total Claims: 0
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |