US2819291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenated nitriles
Assignee: Monsanto Chemicals Ltd
•
Filing: 1956-06-25
•
Granted: 1958-01-07
•
Expires: 1976-06-25
Abstract
No abstract record available.
Inventors
- 👤 Heininger Samuel Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:54
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/20; H01B3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A POLYHALOPHENOXYPROPIONITRILE OF THE FORMULA
Claim 2
Dependent Claim
5 words
A POLYHALOPHENOXYPROPIONITRILE OF THE FORMULA
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) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |