US2843635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble ammonium pentachlorophenate
Assignee: Monsanto Chemicals Ltd
•
Filing: 1957-01-25
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Granted: 1958-07-15
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Expires: 1977-01-25
Abstract
No abstract record available.
Inventors
- 👤 John W Pennington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/138; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
21 words
A PROCESS FOR THE PREPARATION OF AMMONIUM PENTACHLOROPHENATE, IN WHICH VAPOURISED PENTHACHLOROPHENOL IS CONDENSED IN THE PRESENCE OF EXCESS GASEOUS AMMONIA.
References Cited (Backward Citations)
US2350322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |