US3293305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyfluorinated organic compounds
Assignee: Individual
•
Filing: 1962-09-12
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Granted: 1966-12-20
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Expires: 1982-09-12
Abstract
No abstract record available.
Inventors
- 👤 Robert N Haszeldine
- 👤 Alan R Parkinson
- 👤 John M Birchall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:13
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/06; C07D295/073; C07C; C07C17/00; C07C17/093; C07C17/26; C07C17/263; C07C25/00; C07C25/18; C07C25/22; C07C37/00; C07C37/01; C07C37/02; C07C37/045; C07C41/00; C07C41/01; C07C41/16; C07C41/18; C07C41/30; C07C51/00; C07C51/15; C07C51/347; C07C51/367; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/61; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A COMPOUND OF THE FORMULA R1-R, WHERE R1 IS A PERFLUORINATED AROMATIC RADICAL SELECTED FROM THE GROUP CONSISTING OF PERFLUOROPHENYL, PERFLUORONAPHTHYL, PERFLUOROANTHRACENYL, PERFLUORROPHENANTHRYL, PERFLUORODIPHENYL, PERFLUORODIPHENYLMETHANE AND PERFLUORO-LOWER ALKYLPHENYL, R IS AN AROMATIC RADICAL SELECTED FROM THE GROUP CONSISTING OF PHENYL, XYLYL, NAPTHYLYL, METHYL NAPTHYL, ANTHRACENYL, PHENANTHRYL, DIPEHNYL, DIPHENYL METHANE, DIPHENYL ETHER, CHLOROPHENYL, METHOXYPHENYL, AND NITROPHENYL, AND THE R1 AND R RADICALS ARE CONNECTED TO ONE ANOTHER DIRECTLY THROUGH AROMATIC RING CARBON ATOMS.
Claim 2
Dependent Claim
72 words
A COMPOUND OF THE FORMULA R1-R, WHERE R1 IS A PERFLUORINATED AROMATIC RADICAL SELECTED FROM THE GROUP CONSISTING OF PERFLUOROPHENYL, PERFLUORONAPHTHYL, PERFLUOROANTHRACENYL, PERFLUORROPHENANTHRYL, PERFLUORODIPHENYL, PERFLUORODIPHENYLMETHANE AND PERFLUORO-LOWER ALKYLPHENYL, R IS AN AROMATIC RADICAL SELECTED FROM THE GROUP CONSISTING OF PHENYL, XYLYL, NAPTHYLYL, METHYL NAPTHYL, ANTHRACENYL, PHENANTHRYL, DIPEHNYL, DIPHENYL METHANE, DIPHENYL ETHER, CHLOROPHENYL, METHOXYPHENYL, AND NITROPHENYL, AND THE R1 AND R RADICALS ARE CONNECTED TO ONE ANOTHER DIRECTLY THROUGH AROMATIC RING CARBON ATOMS.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |