US2993923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of cuprous tertiarybutyl sulfonium chloride and its use as a selective herbicide
Assignee: Phillips Petroleum Co
•
Filing: 1959-08-20
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Granted: 1961-07-25
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Expires: 1979-08-20
Abstract
No abstract record available.
Inventors
- 👤 Paul F Warner
- 👤 Bradford L Archer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:18
CPC Classifications
C; C07; C07F; C07F1/00; C07F1/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
THE PREPARATION OF CURPOUS TETIARYBUTYL SULFONIUM CHLORIDE WHICH COMPRISES REACTING TOGETHER CUPROUS CHLORIOE AND DITERTIARYBUTYL SULFIDE.
Claim 2
Dependent Claim
16 words
THE PREPARATION OF CURPOUS TETIARYBUTYL SULFONIUM CHLORIDE WHICH COMPRISES REACTING TOGETHER CUPROUS CHLORIOE AND DITERTIARYBUTYL SULFIDE.
References Cited (Backward Citations)
US2362219A
Cited
US2386256A
Cited
US2414035A
Cited
US2455061A
Cited
US2639290A
Cited
US2687348A
Cited
US2807530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |