US2525276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cracking hydrocarbons
Assignee: Hercules Powder Co
•
Filing: 1946-08-22
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Granted: 1950-10-10
•
Expires: 1966-08-22
Abstract
No abstract record available.
Inventors
- 👤 James H Shapleigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:31
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/34; C10G9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS OF CRACKING HYDROCARBONS WHICH COMPRISES FLOWING FINELY-DIFFUSED HYDROCARBON ALONG AN INNER PATH IN A CRACKING TUBE, FLOWING GASEOUS MEDIUM CONCURRENT THEREWITH ALONG AN OUTER PATH IN THE CRACKING TUBE AND IN CONTACT WITH THE CRACKING TUBE WALL, APPLYING HEAT TO THE CRACKING TUBE, CAUSING THE HYDROCARBON FLOWING FROM THE INNER PATH TO MIX DIRECTLY WITH THE GASEOUS MEDIUM FLOWING ALONG THE OUTER PATH IN CONTACT WITH THE CRACKING TUBE, AND IMMEDIATELY PASSING THE MIXTURE OF GASEOUS MEDIUM AND HYDROCARBON THROUGH THE TUBE WHILE APPLYING HEAT TO BRING ABOUT SATISFACTORY CRACKING OF THE HYDROCARBON WITHOUT APPRECIABLE CARBON DEPOSITION.
Claim 2
Dependent Claim
8 words
IN A DEVICE FOR THE CRACKING F HYDROCAR-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |