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Patent US2744819A successfully refreshed from Google Patents.
US2744819A
Expired / Lapsed
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Method for the control of undesired grasses
Assignee: Dow Chemical Co
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Filing: 1954-10-13
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Granted: 1956-05-08
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Expires: 1974-10-13
Abstract
No abstract record available.
Inventors
- 👤 Burton V Toornman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:32
CPC Classifications
A; A01; A01N; A01N41/00; A01N41/02; A01N41/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A METHOD FOR THE CONTROL OF ANNUAL GRASS WEEDS WHICH COMPRISES DISTRIBUTING 4-CHLOROPHENYL 4''-CHLOROBENZENESULFONATE IN INTIMATE ADMIXTURE WITH THE SOIL IN CLOSE PROXIMITY TO ANNUAL GRASS SEED UNDER AMBIENT CONDITIONS NORMALLY LEADING TO THE GERMINATION AND GROWTH OF SUCH SEED, SAID SULFONATE BEING EMPLOYED IN AMOUNT SUFFICIENT TO SUPPRESS THE GROWTH OF SAID SEED.
Claim 2
Independent Claim
54 words
A METHOD FOR THE CONTROL OF ANNUAL GRASS WEEDS WHICH COMPRISES DISTRIBUTING 4-CHLOROPHENYL 4''-CHLOROBENZENESULFONATE IN INTIMATE ADMIXTURE WITH THE SOIL IN CLOSE PROXIMITY TO ANNUAL GRASS SEED UNDER AMBIENT CONDITIONS NORMALLY LEADING TO THE GERMINATION AND GROWTH OF SUCH SEED, SAID SULFONATE BEING EMPLOYED IN AMOUNT SUFFICIENT TO SUPPRESS THE GROWTH OF SAID SEED.
References Cited (Backward Citations)
US2678878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |