US2518688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing acetylene
Assignee: TENNESSEE EASTMAN Corp
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Filing: 1945-12-10
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Granted: 1950-08-15
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Expires: 1965-12-10
Abstract
No abstract record available.
Inventors
- 👤 Hasche Rudolph Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/22; C07C11/24; C10; C10G; C10G9/00; C10H; C10H21/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
IN A TWO STAGE PROCESS FOR PRODUCING ACETYLENE IN WHICH THE FIRST STAGE COMPRISES HEATING FLUID HYDROCARBONS AT SUBATMOSPHERIC PRESSURE TO VAPORIZE ANY LIQUID PORITONS THEREOF AND TO PRODUCE UNSATURATED HYDROCARBON COMPOUNDS CONVERTIBLE INTO ACETYLENE AND THE SECOND STAGE COMPRISES HEATING THE RESULTANT GAS AT ATMOSPHERIC PRESSURE TO A HIGHER TEMPERATURE TO CONVERT THE UNSATURATED HYDROCARBON COMPOUNDS INTO ACETYLENE, THE STEP INTERMEDIATE THE TWO STAGES, WHICH CONSISTS IN INJECTING INTO THE GAS AN INERT DILUENT GAS WHEREBY TO MAINTAIN SUBATMOSPHERIC PRESSURE ON THE GAS IN THE FIRST STAGE AND RAISE THE TOTAL PRESSURE OF THE MIXTURE TO ATMOSPHERIC IN THE SECOND STAGE.
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) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |