US2920997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fungicidal composition of a hydantoin selected from the group consisting of 5, 5 polymethylene and 5, 5 diaryl, and 5, 5 aryl, alky hydantion
Assignee: Pittsburgh Coke and Chemical Co
•
Filing: 1955-02-14
•
Granted: 1960-01-12
•
Expires: 1975-02-14
Abstract
No abstract record available.
Inventors
- 👤 Calvin N Wolf
- 👤 Waldo B Ligett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:29
CPC Classifications
A; A01; A01N; A01N59/00; A01N43/00; A01N43/48; A01N43/50; B; B27; B27K; B27K3/00; B27K3/34; B27K3/343
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A FUNGICIDAL COMPOSITION CONSISTING ESSENTIALLY OF A HYDANTOIN SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
14 words
A FUNGICIDAL COMPOSITION CONSISTING ESSENTIALLY OF A HYDANTOIN SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
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 |