US3637868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coupling iodoperhalo compounds
Assignee: Honeywell International Inc
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Filing: 1969-04-21
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Granted: 1972-01-25
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Expires: 1989-04-21
Abstract
Abstract THIS INVENTION RELATES TO A METHOD FOR COUPLING VARIOUS IODOPERHALO COMPOUNDS PARTICULARLY IODOPERFLUOROALKANES AND IODOPERFLUOROALKYL ETHERS, BY REACTION IN THE PRESENCE OF A METAL FLUORIDE SELECTED FROM THE GROUP CONSISTING OF CSF, RBF, KF AND BAF2 AT A TEMPERATURE OF AT LEAST ABOUT 275*C.
Inventors
- 👤 Henry R Nychka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:55
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C43/126; C07C17/00; C07C17/26; C07C17/263; C07C17/269; C07C41/00; C07C41/01; C07C41/18; C07C41/22; C07C43/123
Claims Analysis
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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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |