US2654689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N, n'-phthalyl hydrazine fungicidal composition
Assignee: Ethyl Corp
•
Filing: 1952-01-30
•
Granted: 1953-10-06
•
Expires: 1972-01-30
Abstract
No abstract record available.
Inventors
- 👤 Waldo B Ligett
- 👤 Rex D Closson
- 👤 Calvin N Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:58
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; A; A01; A01N; A01N2300/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A FUNGICIDAL COMPOSITION CONSISTING ESSENTIALLY OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF N,N-PHTHALYLHYDRAZINE, METALLIC SALTS THEREOF AND SALTS THEREBOF WITH ORGANIC NITROGEN BASES IN AMOUNT LESS THAN ABOUT 50 PER CENT BY WEIGHT, AND INERT DILUENT AND A SURFACE-ACTIVE AGENT.
Claim 2
Dependent Claim
42 words
A FUNGICIDAL COMPOSITION CONSISTING ESSENTIALLY OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF N,N-PHTHALYLHYDRAZINE, METALLIC SALTS THEREOF AND SALTS THEREBOF WITH ORGANIC NITROGEN BASES IN AMOUNT LESS THAN ABOUT 50 PER CENT BY WEIGHT, AND INERT DILUENT AND A SURFACE-ACTIVE AGENT.
References Cited (Backward Citations)
US2429098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |