US2478362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillation process for separating products of perchloro-ethylene fluorination
Assignee: KINETIC CHEMICALS Inc
•
Filing: 1948-06-15
•
Granted: 1949-08-09
•
Expires: 1968-06-15
Abstract
No abstract record available.
Inventors
- 👤 Anthony F Benning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:10
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/383; Y; Y10; Y10S; Y10S62/00; Y10S62/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1442838A
Cited
US2005710A
Cited
US1994035A
Cited
US2322800A
Cited
US2364583A
Cited
US2450414A
Cited
US2450415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |