Patent US2593737A successfully refreshed from Google Patents.
US2593737A
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Perfluorinated cyclohexyl carboxylic acid and cyclohexyl acetic acid and derivatives
Assignee: 3M Co
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Filing: 1951-06-27
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Granted: 1952-04-22
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Expires: 1971-06-27
Abstract
No abstract record available.
Inventors
- 👤 Albert R Diesslin
- 👤 Edward A Kauck
- 👤 Joseph H Simons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:09
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/14; C; C07; C07C; C07C51/00; C07C51/347; C07C51/363; C07C51/58; C07C51/60; C25; C25B; C25B3/00; C25B3/01; C25B3/07; C25B3/09; C25B3/11; C25B3/20; C25B3/27; C25B3/28; D06; D06M; D06M13/00; D06M13/10; D06M13/224; D06M13/236; D06M13/322
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
THE FLUOROCARBON COMPOUNDS OF THE CLASS CONSISTING OF THE FULLY FLUORINATED SATURATED CYCLIC MONOCARBOXYLIC ACIDS WHICH HAVE FROM SEVEN TO EIGHT CARBON ATOMS IN THE MOLECULE AND WHICH HAVE A TERMINAL CYCLOHEXYL FLOROCARBON RING, REPRESENTED BY THE FORMULA CNF2N-1COOH, AND THEIR ACIDS FLUORIDES, AMIDES, AND ALKYL ESTERS; THESE DERIVATIVES BEING HYDROLYZABLE TO FORM SAID ACIDS.
References Cited (Backward Citations)
US2567569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |