Patent US3741729A successfully refreshed from Google Patents.
US3741729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing a solution of cyanuric chloride from gaseous cyanuric chloride
Assignee: Novartis Corp
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Filing: 1970-03-26
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Granted: 1973-06-26
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Expires: 1990-03-26
Abstract
Abstract GASEOUS CYANURIC CHLORIDE FROM A TRIMERIZER IS PASSED INTO A CONDENSER WHERE IT IS CONDENSED TO A LIQUID AND THE CONDENSER IS HELD AT AN ELEVATED TEMPERATURE IN A POT WHILE THE GASES ARE FLASHED OFF. THEREAFTER, THE LIQUID IS ABSORBED IN A FIRST SOLVENT IN A PRIMARY ABSORPTION SYSTEM. THE FLASHED OFF GASES ARE CONTACTED WITH A DIFFERENT SOLVENT, THE MATERIALS OTHER THAN CYANURIC CHOLORIDE ARE REMOVED FROM THE SOLUTION, AND THE CYANURIC CHLORIDE IS THEN TRANSFERRED TO THE FIRST SOLVENT AND THE RESULTING SOLUTION MIXED WITH THE SOLUTION IN THE PRIMARY ABSORPTION SYSTEM.
Inventors
- 👤 W Evers
- 👤 Cracken P Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:23
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |