Patent US3218146A successfully refreshed from Google Patents.
US3218146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling weeds with alpha-chlorinated polychlorophenylacetic acid
Assignee: Hooker Chemical Corp
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Filing: 1962-09-10
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Granted: 1965-11-16
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Expires: 1982-09-10
Abstract
No abstract record available.
Inventors
- 👤 Edward D Weil
- 👤 Dorfman Edwin
- 👤 Linder Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:19
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/64; C07C57/76; C07C255/00; C07C255/01; C07C255/32; C07C57/52; C07C57/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD OF CONTROLLING WEEDS WHICH COMPRISES APPLYING TO THE LOCUS TO BE TREATED A COMPOSITION WHICH COMPRISES AS AN ACTIVE INGREDIENT A PHYTOTOXIC AMOUNT OF A COMPOSITION SELECTED FROM THE GROUP CONSISTING OF 2,3,4,A-TETRACHLOROPHENYLACETIC ACID; 2,3,6,A-TETRACHLOROPHENYLACETIC ACID; 2,4,5,A-TETRACHLOROPHENYLACETIC ACID; 2,4,5,A,A-PENTACHLOROPHENYLACETIC ACID AND MIXTURES OF SUCH ACIDS; THE ALKALI METAL SALTS AND MIXTURES THEREOF; THE ALKALINE EARTH METAL SALTS AND MIXTURES THEREOF; THE AMMONIUM SALTS AND MIXTURES THEREOF; THE AMIDES OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE THIOAMIDES OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE ACID HALIDES OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE NITRILE OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE ESTERS OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE ANHYDRIDE OF SAID ACIDS AND MIXTURES THEREOF; AND THE HYDROLYZABLE THIOANHYDRIDE OF SAID ACIDS AND MIXTURES THEREOF.
Claim 2
Independent Claim
132 words
A METHOD OF CONTROLLING WEEDS WHICH COMPRISES APPLYING TO THE LOCUS TO BE TREATED A COMPOSITION WHICH COMPRISES AS AN ACTIVE INGREDIENT A PHYTOTOXIC AMOUNT OF A COMPOSITION SELECTED FROM THE GROUP CONSISTING OF 2,3,4,A-TETRACHLOROPHENYLACETIC ACID; 2,3,6,A-TETRACHLOROPHENYLACETIC ACID; 2,4,5,A-TETRACHLOROPHENYLACETIC ACID; 2,4,5,A,A-PENTACHLOROPHENYLACETIC ACID AND MIXTURES OF SUCH ACIDS; THE ALKALI METAL SALTS AND MIXTURES THEREOF; THE ALKALINE EARTH METAL SALTS AND MIXTURES THEREOF; THE AMMONIUM SALTS AND MIXTURES THEREOF; THE AMIDES OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE THIOAMIDES OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE ACID HALIDES OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE NITRILE OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE ESTERS OF SAID ACIDS AND MIXTURES THEREOF; THE HYDROLYZABLE ANHYDRIDE OF SAID ACIDS AND MIXTURES THEREOF; AND THE HYDROLYZABLE THIOANHYDRIDE OF SAID ACIDS AND MIXTURES THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |