Patent US2803580A successfully refreshed from Google Patents.
US2803580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus derivatives, process for their preparation and compositions containing same
Assignee: Rhone Poulenc SA
•
Filing: 1956-03-05
•
Granted: 1957-08-20
•
Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Metivier Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:46
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/10; A01N57/14; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A PROCESS FOR THE PREPARATION OF A PHOSPHORUS DERIVATIVE WHICH COMPRISES REACTING A PHOSPHOROCHLORIDOTHIONATE OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
12 words
AN INSECTICIDAL COMPOSITION WHICH COMPRISES A PHOSPHOSRUS DERIVATIVE OF THE GENERAL FORMULA
References Cited (Backward Citations)
DE876692C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |