Patent US3252249A successfully refreshed from Google Patents.
US3252249A
Expired / Lapsed
US
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Crop thinner
Assignee: MillerKnoll Inc
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Filing: 1964-04-29
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Granted: 1966-05-24
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Robert L Propst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:43
CPC Classifications
A; A01; A01B; A01B41/00; Y; Y10; Y10T; Y10T83/00; Y10T83/364
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
AN APPARATUS FOR THINNING PLANTS FROM A CROP ROW, COMPRISING: A FRAME MOVABLE IN A DIRCTION ALONG A CROP ROW; A SOURCE OF PRESSURIZED WATER; A WATER SUPPLY SOURCE; A PAIR OF JET NOZZLES MOUNTED ON SAID FRAME, ONE OF SAID JET NOZZLES POINTED TOWARD EACH SIDE OF THE CROP ROW; SAID JET NOZZLES DIRECTING JET STREAMS OF WATER FROM SAID SUPPLY SOURCE UNDER PRESSURE TOWARD THE CROP ROW AT GENERALLY RIGHT ANGLES THERETO FOR DESTRUCTION OF PLANTS TO BE THINNED THEREFROM; AND MEANS FOR INTERRUPTING SAID JET STREAMS FOR SELECTIVELY SAVING PLANTS IN THE CROP ROW.
Claim 2
Independent Claim
97 words
AN APPARATUS FOR THINNING PLANTS FROM A CROP ROW, COMPRISING: A FRAME MOVABLE IN A DIRCTION ALONG A CROP ROW; A SOURCE OF PRESSURIZED WATER; A WATER SUPPLY SOURCE; A PAIR OF JET NOZZLES MOUNTED ON SAID FRAME, ONE OF SAID JET NOZZLES POINTED TOWARD EACH SIDE OF THE CROP ROW; SAID JET NOZZLES DIRECTING JET STREAMS OF WATER FROM SAID SUPPLY SOURCE UNDER PRESSURE TOWARD THE CROP ROW AT GENERALLY RIGHT ANGLES THERETO FOR DESTRUCTION OF PLANTS TO BE THINNED THEREFROM; AND MEANS FOR INTERRUPTING SAID JET STREAMS FOR SELECTIVELY SAVING PLANTS IN THE CROP ROW.
References Cited (Backward Citations)
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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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |