Patent US3205252A successfully refreshed from Google Patents.
US3205252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thiophosphonous acid ester insecticides
Assignee: ExxonMobil Oil Corp
•
Filing: 1963-03-26
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Granted: 1965-09-07
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Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 Melton Thomas Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:15
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/48; C07F9/4866; C07F9/4875
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
4 words
COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US2234379A
Cited
US2392841A
Cited
US3014043A
Cited
US2967884A
Cited
US3112271A
Cited
US3071609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |