US2875233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of o-aryl phosphoroamidothioates
Assignee: Dow Chemical Co
•
Filing: 1956-03-05
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Granted: 1959-02-24
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Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Etcyl H Blair
- 👤 Kenneth C Kauer
- 👤 Edgar C Brittion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:33
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/24; C07F9/2404; C07F9/242
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A METHOD FOR THE MANUFACTURE OF A PHOSPHOROAMIDOTHIOATE HAVING THE FORMULA
Claim 2
Independent Claim
11 words
A METHOD FOR THE MANUFACTURE OF A PHOSPHOROAMIDOTHIOATE HAVING THE FORMULA
References Cited (Backward Citations)
US2552574A
Cited
US2552538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |