Patent US2848520A successfully refreshed from Google Patents.
US2848520A
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Preparation of methylacetylene and ethylacetylene
Assignee: Airco Inc
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Filing: 1953-11-09
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Granted: 1958-08-19
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Expires: 1973-11-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Rutledge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:22
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/32; C07C1/325; C07C1/328; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/93; Y10S585/931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE PROCESS OF PRODUCING AN ALKYLENE OF THE GROUP CONSISTING OF METHYLACETYLENE AND ETHYLACETYLENE WHICH COMPRISES FORMING A DISPERSION OF MONOSODIUM ACETYLIDE IN AN ORGANIC LIQUID, SAID ACETYLIDE BEING OF HIGH PURITY, VIRTUALLY WHITE, AND IN A FINELY DIVIDED STATE, SAID LIQUID BEING SUBSTANTIALLY INERT WITH RESPECT TO THE REACTANTS AND PRODUCTS OF REACTION, INTRODUCING INTO THE DISPERSION A COMPOUND OF THE GROUP CONSISTING OF DIMETHYL SULFATE AND DIETHYL SULFATE, AND CONDUCTING RHE REACTION UNDER CONTROLLED TEMPERATURE CONDITIONS TO PRODUCE THE DESIRED ALKYNE IN ACCORDANCE WITH THE FOLLOWING EQUATION
Claim 2
Dependent Claim
89 words
THE PROCESS OF PRODUCING AN ALKYLENE OF THE GROUP CONSISTING OF METHYLACETYLENE AND ETHYLACETYLENE WHICH COMPRISES FORMING A DISPERSION OF MONOSODIUM ACETYLIDE IN AN ORGANIC LIQUID, SAID ACETYLIDE BEING OF HIGH PURITY, VIRTUALLY WHITE, AND IN A FINELY DIVIDED STATE, SAID LIQUID BEING SUBSTANTIALLY INERT WITH RESPECT TO THE REACTANTS AND PRODUCTS OF REACTION, INTRODUCING INTO THE DISPERSION A COMPOUND OF THE GROUP CONSISTING OF DIMETHYL SULFATE AND DIETHYL SULFATE, AND CONDUCTING RHE REACTION UNDER CONTROLLED TEMPERATURE CONDITIONS TO PRODUCE THE DESIRED ALKYNE IN ACCORDANCE WITH THE FOLLOWING EQUATION
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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |