Patent US1415427A successfully refreshed from Google Patents.
Patent US2522488A successfully refreshed from Google Patents.
US2522488A
Expired / Lapsed
US
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Water-soluble salt of 2-4 dichloro-phenoxy acetic acid and method of producing same
Assignee: Individual
•
Filing: 1948-12-18
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Granted: 1950-09-19
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Expires: 1968-12-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Bersworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:58
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C59/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
THE CHEMICAL COMPOUND CONSISTING OF A DOUBLE ALKALI METAL SALT COMPLEX OF 2-4 DICHLOROPHENOXY ACETIC ACID AND ETHYLENE DIAMINE TETRAACETIC ACID, SAID SALT COMPLEX HAVING A PH IN AQUEOUS SOLUTION OF ABOUT 7.
Claim 2
Dependent Claim
33 words
THE CHEMICAL COMPOUND CONSISTING OF A DOUBLE ALKALI METAL SALT COMPLEX OF 2-4 DICHLOROPHENOXY ACETIC ACID AND ETHYLENE DIAMINE TETRAACETIC ACID, SAID SALT COMPLEX HAVING A PH IN AQUEOUS SOLUTION OF ABOUT 7.
References Cited (Backward Citations)
US2396513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |