US3616573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seed capsule
Assignee: FMC Corp
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Filing: 1969-01-22
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Granted: 1971-11-02
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Expires: 1989-01-22
Abstract
Abstract VENTILATED SEED CAPSULES ARE FORMED BY PREPARING A CHARGE OF SEED BED MATERIALS, SUCH AS VERMICULITE AND BINDER, COMPRESSING THE CHARGE TO FORM A BASE CAPSULE SEGMENT HAVING A CYLINDERICAL RECESS THEREIN WITH RADICAL GROOVES EXTENDING FROM THE CYLINDRICAL RECESS TO THE OUTER PERIMETER OF THE BASE SEGMENT, DRYING THE BASE SEGMENT, PLACING A SEED IN THE RECESS, AND ENCLOSING THE RECESS TO FORM A SEED CONTAINING CAVITY BY SECURING TO THE BASE A COVER THAT HAS BEEN PREPARED IN THE SAME MANNER AS THE BASE.
Inventors
- 👤 Peter J Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:39
CPC Classifications
A; A01; A01C; A01C1/00; A01C1/06
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |