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Patent US3012869A successfully refreshed from Google Patents.
US3012869A
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US
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Herbicidal method employing dinitropolyalkyl benzenes
Assignee: Shell USA Inc
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Filing: 1958-09-08
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Granted: 1961-12-12
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Expires: 1978-09-08
Abstract
No abstract record available.
Inventors
- 👤 David E Ramey
- 👤 William J Hughes
- 👤 Johannes Van Overbeek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:18
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A METHOD FOR THE DESTRUCTION OF CRABGRASS COMPRISING TREATING THE LOCUS OF CRABGRASS INFESTATION WITH HERBICIDALLY EFFECTIVE AMOUNT OF DINITROPOLYALKYL BENZENE HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 2
Independent Claim
26 words
A METHOD FOR THE DESTRUCTION OF CRABGRASS COMPRISING TREATING THE LOCUS OF CRABGRASS INFESTATION WITH HERBICIDALLY EFFECTIVE AMOUNT OF DINITROPOLYALKYL BENZENE HAVING THE FOLLOWING STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2864871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |