Patent US2802824A successfully refreshed from Google Patents.
US2802824A
Expired / Lapsed
US
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Omicron-aryl phosphinothioates
Assignee: Dow Chemical Co
•
Filing: 1956-04-30
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Granted: 1957-08-13
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Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Tolkmith Henry
- 👤 Edgar C Britton
- 👤 Clayton F Holoway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:03
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/576; C07F9/59; C07F9/564; C07F9/572
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AN O-ARYL PHOSPHINOTHIOATE HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
AN O-ARYL PHOSPHINOTHIOATE HAVING THE FORMULA
References Cited (Backward Citations)
US2654738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |