US2920994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and methods for controlling plant rust
Assignee: Spencer Chemical Co
•
Filing: 1957-08-16
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Granted: 1960-01-12
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Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Epperly Jean Ray
- 👤 Jr Harry Charles Zeisig
- 👤 Hopkins Thomas Robert
- 👤 Neighbors Ralph Pearl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:03
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/08; A01N47/10; A01N47/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
THE METHOD OF CONTROLLING PLANT RUST WHICH COMPRISES SUPPLYING A PLANT WITH A CHEMOTHERAPEUTIC AMOUNT OF A CARBAZATE OF THE FORMULA
Claim 2
Independent Claim
21 words
THE METHOD OF CONTROLLING PLANT RUST WHICH COMPRISES SUPPLYING A PLANT WITH A CHEMOTHERAPEUTIC AMOUNT OF A CARBAZATE OF THE FORMULA
References Cited (Backward Citations)
US2758054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |