Patent US2566288A successfully refreshed from Google Patents.
US2566288A
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Dialkyldithiophosphatomethylureas
Assignee: Wyeth Holdings LLC
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Filing: 1950-06-03
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Granted: 1951-08-28
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Expires: 1970-06-03
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Hook
- 👤 Philip H Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:48
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
DIALKYLDITHIOPHOSPHATOMETHYLUREAS OF THE FORMULA
Claim 2
Dependent Claim
4 words
DIALKYLDITHIOPHOSPHATOMETHYLUREAS OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |