US2554857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorochlorobutanes
Assignee: Occidental Chemical Corp
•
Filing: 1947-08-02
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Granted: 1951-05-29
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Expires: 1967-08-02
Abstract
No abstract record available.
Inventors
- 👤 Carl I Gochenour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:52
CPC Classifications
C; C07; C07C; C07C19/00; C07C19/08; C07C19/10; C07C17/00; C07C17/013; C07C17/04; C07C17/093; C07C17/20; C07C17/21
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
THE PROCESS FOR PRODUCTION OF OCTAFLUORDICHLORBUTANE WHICH COMPRISES CONTACTING 1,1,14,4,4-HEXAFLUOR-2,3-DICHLORBUTENE WITH COBALT TRIFLUORIDE, TO ADD A FLUORINE ATOM TO EACH SECONDARY CARBON ATOM.
Claim 2
Dependent Claim
23 words
THE PROCESS FOR PRODUCTION OF OCTAFLUORDICHLORBUTANE WHICH COMPRISES CONTACTING 1,1,14,4,4-HEXAFLUOR-2,3-DICHLORBUTENE WITH COBALT TRIFLUORIDE, TO ADD A FLUORINE ATOM TO EACH SECONDARY CARBON ATOM.
Claim 3
Dependent Claim
10 words
AS A NEW CHEMICAL COMPOUND 1,1,1,2,3,4,4,4, OCTAFLUOR 2,3, DICHLOR BUTANE.
Claim 4
Dependent Claim
10 words
AS A NEW CHEMICAL COMPOUND 1,1,1,2,3,4,4,4, OCTAFLUOR 2,3, DICHLOR BUTANE.
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) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |