US3156701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of oxacycloalkanes from alkylene halohydrins
Assignee: Shell USA Inc
•
Filing: 1962-05-14
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Granted: 1964-11-10
•
Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Albert L Rocklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:12
CPC Classifications
C; C07; C07D; C07D305/00; C07D305/02; C07D305/04; C07D305/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
21 words
THE PROCESS FOR PREPARING CYCLIC ETHERS WHICH COMPRISES REACTING TOGETHER AN ALKALI METAL HYDROXIDE AND AN ALKYLENE HALOHYDRIN OF THE FORMULA
Claim 2
Dependent Claim
21 words
THE PROCESS FOR PREPARING CYCLIC ETHERS WHICH COMPRISES REACTING TOGETHER AN ALKALI METAL HYDROXIDE AND AN ALKYLENE HALOHYDRIN OF THE FORMULA
Claim 3
Dependent Claim
36 words
THE PROCESS FOR PREPARING OXETANE WHICH COMPRISES REACTING TOGETHER AN ALKALI METAL HYDROXIDE AND TRIMETHYLENE CHLOROHYDRIN IN ANHYDROUS TERTIARY ALKANOL HAVING 4 TO 8 CARBON ATOMS PER MOLECULE AT THE BOILING TEMPERATURE OF THE REACTION MIXTURE.
Claim 4
Dependent Claim
36 words
THE PROCESS FOR PREPARING OXETANE WHICH COMPRISES REACTING TOGETHER AN ALKALI METAL HYDROXIDE AND TRIMETHYLENE CHLOROHYDRIN IN ANHYDROUS TERTIARY ALKANOL HAVING 4 TO 8 CARBON ATOMS PER MOLECULE AT THE BOILING TEMPERATURE OF THE REACTION MIXTURE.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |