US2885319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-phenylmaleamic acid esters as fungicides
Assignee: Pittsburgh Coke and Chemical Co
•
Filing: 1953-12-17
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Granted: 1959-05-05
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Expires: 1973-12-17
Abstract
No abstract record available.
Inventors
- 👤 Waldo B Ligett
- 👤 Calvin N Wolf
- 👤 Rex D Closson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:41
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/68; A; A01; A01N; A01N2300/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
FUNGICIDAL COMPOSITIONS HAVING AS A PRINCIPAL ACTIVE INGREDIENT A LOWER ALKYL ESTER OF N-PHENYLMALEAMIC ACID AND A SURFACE-ACTIVE AGENT AS A RELATIVELY INERT FUNGICIDAL ADJUVANT AS A CARRIER THEREOR, SAID ESTER HAVING THE FORMULA
Claim 2
Dependent Claim
34 words
FUNGICIDAL COMPOSITIONS HAVING AS A PRINCIPAL ACTIVE INGREDIENT A LOWER ALKYL ESTER OF N-PHENYLMALEAMIC ACID AND A SURFACE-ACTIVE AGENT AS A RELATIVELY INERT FUNGICIDAL ADJUVANT AS A CARRIER THEREOR, SAID ESTER HAVING THE FORMULA
References Cited (Backward Citations)
US2663665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |