Patent US3755964A successfully refreshed from Google Patents.
US3755964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-plant substrate body
Assignee: Individual
•
Filing: 1972-01-07
•
Granted: 1973-09-04
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Expires: 1992-01-07
Abstract
Abstract A skeleton is provided, which forms a wrapper and has thin walls which define a plurality of chambers. The skeleton consists of elastic porous foam through which plants can grow. Soillike plant substrate material is contained in said chambers. Cover means close said chambers to prevent an escape of said substrate material therefrom.
Inventors
- 👤 D Rack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:47
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/02; A01G9/029; A01G9/0295; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24157
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A multiple-plant substrate body as set forth in claim 1, in which said skeleton consists of polyether-polyurethane foam having a low specific gravity.
Claim 2
Dependent Claim
33 words
A multiple-plant substrate body as set forth in claim 1, in which said skeleton and cover means consist of a material selected from the class consisting of polyurethane foams containing polyesters and polyethers.
References Cited (Backward Citations)
US2988441A
Cited
US3172234A
Cited
US3288278A
Cited
US3355084A
Cited
US3524279A
Cited
US3660934A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |