US2763539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for the control of the growth of vegetation
Assignee: Dow Chemical Co
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Filing: 1955-02-01
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Granted: 1956-09-18
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Expires: 1975-02-01
Abstract
No abstract record available.
Inventors
- 👤 George R Mcqueen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:39
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/18; A01N37/26; A01N2300/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A METHOD WHICH COMPRISES APPLYING TO AND MIXING WITH A GROWTH MEDIUM A GROWTH INHIBITING AMOUNT OF A 2,4-DINITROPHENYLDRAZIDE OF A LOWER ALIPHATIC ACID.
Claim 2
Independent Claim
24 words
A METHOD WHICH COMPRISES APPLYING TO AND MIXING WITH A GROWTH MEDIUM A GROWTH INHIBITING AMOUNT OF A 2,4-DINITROPHENYLDRAZIDE OF A LOWER ALIPHATIC ACID.
References Cited (Backward Citations)
FR885341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |