US3097147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of propargyl alcohol
Assignee: Honeywell International Inc
•
Filing: 1961-03-16
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Granted: 1963-07-09
•
Expires: 1981-03-16
Abstract
No abstract record available.
Inventors
- 👤 Rob R Macgregor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:18
CPC Classifications
C; C07; C07C; C07C33/00; C07C33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A PROCESS FOR RECOVERING PROPARGYL ALCOHOL FROM A MIXTURE CONTAINING IT TOGETHER WITH AN N-ALKYL PYRROLIDONE HAVING 1 TO 8 N-ALKYL CARBON ATOMS, WHICH COMPRISES SUB-
Claim 2
Dependent Claim
26 words
A PROCESS FOR RECOVERING PROPARGYL ALCOHOL FROM A MIXTURE CONTAINING IT TOGETHER WITH AN N-ALKYL PYRROLIDONE HAVING 1 TO 8 N-ALKYL CARBON ATOMS, WHICH COMPRISES SUB-
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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |