US3303221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing haloethers
Assignee: Dow Chemical Co
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Filing: 1961-11-03
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Granted: 1967-02-07
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Expires: 1981-11-03
Abstract
No abstract record available.
Inventors
- 👤 Ronald E Gilbert
- 👤 Nicholas B Lorette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:29
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C43/14; C07C43/17; C07C43/174
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A PROCESS FOR THE PREPARATION OF HALOETHERS HAVING THE FORMULA A-O-(CH2)4-X, WHEREIN X IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE AND WHEREIN A IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF PRIMARY ALKYL RADICALS HAVING FROM ONE TO SIX CARBON ATOMS, AND ALLYL AND BENYL TRADICALS HAVING THE RESPECTIVE FORMULAE:
Claim 2
Dependent Claim
56 words
A PROCESS FOR THE PREPARATION OF HALOETHERS HAVING THE FORMULA A-O-(CH2)4-X, WHEREIN X IS A HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE AND WHEREIN A IS A RADICAL SELECTED FROM THE GROUP CONSISTING OF PRIMARY ALKYL RADICALS HAVING FROM ONE TO SIX CARBON ATOMS, AND ALLYL AND BENYL TRADICALS HAVING THE RESPECTIVE FORMULAE:
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |