US2993929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing phosphonothioic chlorides and phosphinothioic chlorides and newproducts produced by said process
Assignee: Victor Chemical Works
•
Filing: 1957-05-14
•
Granted: 1961-07-25
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Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Kenneth H Rattenbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:52
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/42; C07F9/30; C07F9/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
9 words
A PROCESS FOR PREPARING A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
9 words
A PROCESS FOR PREPARING A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
5 words
A COMPOUND OF THE FORNULA
Claim 4
Dependent Claim
5 words
A COMPOUND OF THE FORNULA
References Cited (Backward Citations)
US2672459A
Cited
US2724725A
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 |