US4007556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam body and process for the production thereof
Assignee: Semperit AG Holding
•
Filing: 1973-05-14
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Granted: 1977-02-15
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Expires: 1993-05-14
Abstract
Abstract A foam body, for example in the form of a mat, strip, square or the like, consisting of pieces of polyurethane foam held together by a bonding agent, which may be foamed, e.g. porous polyurethane, characterized in that plant seeds are contained in the foam body.
Inventors
- 👤 Maternus Gluck
- 👤 Walter Kriegner
- 👤 Bernhard Eder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:58
CPC Classifications
A; A01; A01C; A01C1/00; A01C1/04; A01C1/044; A01C1/046; A01G; A01G20/00; A01G20/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
Process for the manufacture of a seed growing body characterized in that a foamed binding agent is added to a mixture of polyurethane foam-pieces and seeds whereupon the resulting mixture is moulded.
Claim 2
Dependent Claim
32 words
Process for the manufacture of a seed growing body characterized in that a foamed binding agent is added to a mixture of polyurethane foam-pieces and seeds whereupon the resulting mixture is moulded.
References Cited (Backward Citations)
CA722589A
Cited
US2965584A
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US2988441A
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US3110129A
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US3154884A
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US3336129A
Cited
US3257754A
Cited
US3608238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |