Patent US3021352A successfully refreshed from Google Patents.
US3021352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of s-(1-alkenyl) phosphorodithioates
Assignee: Wyeth Holdings LLC
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Filing: 1960-09-02
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Granted: 1962-02-13
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Expires: 1980-09-02
Abstract
No abstract record available.
Inventors
- 👤 Miller Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:50
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/10; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A METHOD FOR PREPARING PHOSPHORODITHIOATED REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Independent Claim
10 words
A METHOD FOR PREPARING PHOSPHORODITHIOATED REPRESENTED BY THE GENERAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |