Patent US2513294A successfully refreshed from Google Patents.
US2513294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for conducting chemical reactions
Assignee: ExxonMobil Oil Corp
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Filing: 1946-08-02
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Granted: 1950-07-04
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Expires: 1966-08-02
Abstract
No abstract record available.
Inventors
- 👤 Sylvander C Eastwood
- 👤 Robert D Drew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:22
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; C; C10; C10G; C10G9/00; C10G9/28; C10G9/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROCESS FOR CRACKING HYDROCARBONS WHICH COMPRISES: MAINTAING A SUBSTANTIALLY COMPACT BED OF DOWNWARDLY MOVING GRANULAR SOLID HEAT TRANSFER MATERIAL IN A CONFINED UPRIGHT ZONE, WITHDRAWING SOLID HEAT TRANSFER FROM THE LOWER SECTION OF SAID ZONE, REPLENISHING SAID BED IN PART BY INTRODUCING SOLID HEAT TRANSFER MATERIAL INTO SAID BED AT AN INTERMEDIATE LEVEL AT A TEMPERATURE AT LEAST EQUAL TO THAT REQUIRED FOR THE CRACKING CONVERSATION OF SAID HYDROCARBONS WHILE IN CONTACT WITH SAID BED, FURTHER REPLENISHING SAID BED BY SUPPLYING MORE OF THE SAME HEAT TRANSFER MATERIAL ONTO THE SURFACE OF SAID BED IN THE UPPER SECTION OF SAID ZONE AT A TEMPERATURE SUBSTANTIALLY BELOW THAT REQUIRED FOR THE CRACKING CONVERSION OF SAID HYDROCARBONS, INTRODUCING HYDROCARBONS INTO THE LOWER PORTION OF SAID BED TO EFFECT THE
Claim 2
Dependent Claim
128 words
A PROCESS FOR CRACKING HYDROCARBONS WHICH COMPRISES: MAINTAING A SUBSTANTIALLY COMPACT BED OF DOWNWARDLY MOVING GRANULAR SOLID HEAT TRANSFER MATERIAL IN A CONFINED UPRIGHT ZONE, WITHDRAWING SOLID HEAT TRANSFER FROM THE LOWER SECTION OF SAID ZONE, REPLENISHING SAID BED IN PART BY INTRODUCING SOLID HEAT TRANSFER MATERIAL INTO SAID BED AT AN INTERMEDIATE LEVEL AT A TEMPERATURE AT LEAST EQUAL TO THAT REQUIRED FOR THE CRACKING CONVERSATION OF SAID HYDROCARBONS WHILE IN CONTACT WITH SAID BED, FURTHER REPLENISHING SAID BED BY SUPPLYING MORE OF THE SAME HEAT TRANSFER MATERIAL ONTO THE SURFACE OF SAID BED IN THE UPPER SECTION OF SAID ZONE AT A TEMPERATURE SUBSTANTIALLY BELOW THAT REQUIRED FOR THE CRACKING CONVERSION OF SAID HYDROCARBONS, INTRODUCING HYDROCARBONS INTO THE LOWER PORTION OF SAID BED TO EFFECT THE
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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) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |