Patent US3220368A successfully refreshed from Google Patents.
US3220368A
Expired / Lapsed
US
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Method and apparatus for planting and treating a seed bed
Assignee: GANDY Co
•
Filing: 1962-09-13
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Granted: 1965-11-30
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Ebenhard S Gandrud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:51
CPC Classifications
A; A01; A01C; A01C7/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
THE METHOD OF TREATING EARTH TO ENHANCE THE GROWTH OF PLANTED SEED THEREIN COMPRISING THE STEPS OF CONTINUOUSLY AND SIMULTANEOUSLY COMPACTING A SUBSOIL LAYER OF EARTH OVER THE PLANTED SEED WHILE FORMING A LAYER OF TOP LOOSE EARTH OVER THE COMPACTED LAYER, AND DEPOSITING A LAYER OF WEED KILLING CHEMICAL OVER SAID LOOSE EARTH WHILE COVERING SAID CHEMICAL WITH A LAYER OF LOOSE EARTH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |