US2752272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of coke from tubes
Assignee: Standard Oil Co
•
Filing: 1952-12-09
•
Granted: 1956-06-26
•
Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Philip S Fay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:08
CPC Classifications
C; C10; C10B; C10B43/00; C10B43/02; F; F28; F28G; F28G7/00; F28G7/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF REMOVING COKE DEPOSITS FROM THE BORE OF A COKED TUBE WHICH COMPRISES DISTRIBUTING AN EXPLOSIVE MATERIAL INSIDE THE TUBE SUBSTANTIALLY ALONG THE ENTIRE LENGTH OF THAT PORTION OF THE TUBE FROM WHICH THE COKE IS TO BE REMOVED AND DETONATING SAID EXPLOSIVE MATERIAL INSIDE THE BORE OF SAID TUBE WHEREBY THE COKE IS SUBJECTED TO PHYSICAL SHOCK.
Claim 2
Independent Claim
60 words
A METHOD OF REMOVING COKE DEPOSITS FROM THE BORE OF A COKED TUBE WHICH COMPRISES DISTRIBUTING AN EXPLOSIVE MATERIAL INSIDE THE TUBE SUBSTANTIALLY ALONG THE ENTIRE LENGTH OF THAT PORTION OF THE TUBE FROM WHICH THE COKE IS TO BE REMOVED AND DETONATING SAID EXPLOSIVE MATERIAL INSIDE THE BORE OF SAID TUBE WHEREBY THE COKE IS SUBJECTED TO PHYSICAL SHOCK.
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) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |