US2537608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective crab grass herbicidal compositions
Assignee: Standard Oil Development Co
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Filing: 1950-01-03
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Granted: 1951-01-09
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Expires: 1970-01-03
Abstract
No abstract record available.
Inventors
- 👤 Miller W Swaney
- 👤 Howard L Yowell
- 👤 Jr John F Mckay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:31
CPC Classifications
A; A01; A01N; A01N55/00; A01N55/02; A01N55/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
41 words
A SELECTIVE CRAB GRASS HERBICIDE CONCENTRATE SOLUTION COMPOSITION COMPRISING A SOLUTION OF PHENYL MERCURIC ACETATE IN AN AROMATIC EXTRACT OF KEROSENE, SAID AROMATIC EXTRACT BOILING IN THE RANGE OF 325*-600* F. AND HAVING AN AROMATIC CONTENT OF BETWEEN 83% AND 98%.
Claim 2
Dependent Claim
41 words
A SELECTIVE CRAB GRASS HERBICIDE CONCENTRATE SOLUTION COMPOSITION COMPRISING A SOLUTION OF PHENYL MERCURIC ACETATE IN AN AROMATIC EXTRACT OF KEROSENE, SAID AROMATIC EXTRACT BOILING IN THE RANGE OF 325*-600* F. AND HAVING AN AROMATIC CONTENT OF BETWEEN 83% AND 98%.
Claim 3
Dependent Claim
46 words
A SELECTIVE CRAB GRASS HERBICIDE COMPOSITION COMPRISING A SOLUTION OF PHENYL MERCURIC ACETATE IN A SULFURIC ACID-TREATED KEROSENE, SAID ACIDTREATED KEROSENE HAVING A SPECIFIC GRAVITY IN THE RANGE OF 0.775-0.825, A BOILING POIINT PREDOMINANTLY IN THE RANGE OF 400*-505* F., AND BEING SUBSTANTIALLY FREE OF AROMATICS.
Claim 4
Dependent Claim
46 words
A SELECTIVE CRAB GRASS HERBICIDE COMPOSITION COMPRISING A SOLUTION OF PHENYL MERCURIC ACETATE IN A SULFURIC ACID-TREATED KEROSENE, SAID ACIDTREATED KEROSENE HAVING A SPECIFIC GRAVITY IN THE RANGE OF 0.775-0.825, A BOILING POIINT PREDOMINANTLY IN THE RANGE OF 400*-505* F., AND BEING SUBSTANTIALLY FREE OF AROMATICS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |