Patent US3257754A successfully refreshed from Google Patents.
US3257754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planting seeds in a skin foam sheet
Assignee: Haveg Industries Inc
•
Filing: 1964-05-14
•
Granted: 1966-06-28
•
Expires: 1984-05-14
Abstract
No abstract record available.
Inventors
- 👤 Ernest O Ohsol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:18
CPC Classifications
A; A01; A01C; A01C1/00; A01C1/04; A01C1/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A FOAMED SEED PLANTING SHEET CONSISTING OF (1) A FOAMED THERMOPLASTIC RESIN COMPOSITION CORE, (2) A NONPOROUS, TOUGH, THERMOPLASTIC RESIN COMPOSITION OUTER SKIN, SAID CORE BEING INTEGRALLY UNITED TO SAID OUTER SKIN AND COMPRISING 50 TO 97% OF THE TOTAL THICKNESS OF THE SHEET, SAID SKIN BEING MADE OF THE SAME RESIN AS SAID CORE, SAID CORE PROVIDED ADJACENT ITS GROUND-ENGAGING SUFACE WITH SEED, SAID OUTER SKIN PROVIDED WITH PERFORATIONS IN COMMUNICATION WITH SAID CORE AND SUBSTANTIALLY SUPERPOSED OVER SAID SEED, SAID SHEET BEING AT LEAST .120 INCH THICK AND SAID SKIN BEING AT LEAST .008 INCH THICK.
Claim 2
Dependent Claim
98 words
A FOAMED SEED PLANTING SHEET CONSISTING OF (1) A FOAMED THERMOPLASTIC RESIN COMPOSITION CORE, (2) A NONPOROUS, TOUGH, THERMOPLASTIC RESIN COMPOSITION OUTER SKIN, SAID CORE BEING INTEGRALLY UNITED TO SAID OUTER SKIN AND COMPRISING 50 TO 97% OF THE TOTAL THICKNESS OF THE SHEET, SAID SKIN BEING MADE OF THE SAME RESIN AS SAID CORE, SAID CORE PROVIDED ADJACENT ITS GROUND-ENGAGING SUFACE WITH SEED, SAID OUTER SKIN PROVIDED WITH PERFORATIONS IN COMMUNICATION WITH SAID CORE AND SUBSTANTIALLY SUPERPOSED OVER SAID SEED, SAID SHEET BEING AT LEAST .120 INCH THICK AND SAID SKIN BEING AT LEAST .008 INCH THICK.
References Cited (Backward Citations)
US3080681A
Cited
US3160986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |