US2974071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line cleaning process
Assignee: Individual
•
Filing: 1953-12-21
•
Granted: 1961-03-07
•
Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 Frank E Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:14
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B08B9/0325; F; F16; F16L; F16L2101/00; F16L2101/10; F16L2101/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR CLEANING THE INTERIOR OF A PLUGGED INACCESSIBLE LINE HAVING AN ACCESSIBLE END CONSISTING OF DRAWING HOT OIL FROM AN EXTERIOR SOURCE, FORCING SAID HOT OIL INTO THE ACCESSIBLE END OF SAID LINE AND AGAINST THE PLUG THEREIN AT A CONTROLLED AND PREDETERMINED PRESSURE UNTIL SAID PLUG HAS BEEN DISSOLVED, WITHDRAWING SAID HOT OIL AND DISSOLVED PLUG THROUGH SAID ACCESSIBLE END AT A CONTROLLED AND PREDETERMINED SUCTION AND REDEPOSITING SAID HOT OIL AND DISSOLVED PLUG IN SAID EXTERIOR SOURCE.
Claim 2
Dependent Claim
81 words
A PROCESS FOR CLEANING THE INTERIOR OF A PLUGGED INACCESSIBLE LINE HAVING AN ACCESSIBLE END CONSISTING OF DRAWING HOT OIL FROM AN EXTERIOR SOURCE, FORCING SAID HOT OIL INTO THE ACCESSIBLE END OF SAID LINE AND AGAINST THE PLUG THEREIN AT A CONTROLLED AND PREDETERMINED PRESSURE UNTIL SAID PLUG HAS BEEN DISSOLVED, WITHDRAWING SAID HOT OIL AND DISSOLVED PLUG THROUGH SAID ACCESSIBLE END AT A CONTROLLED AND PREDETERMINED SUCTION AND REDEPOSITING SAID HOT OIL AND DISSOLVED PLUG IN SAID EXTERIOR SOURCE.
References Cited (Backward Citations)
US1198045A
Cited
US1757035A
Cited
US2092321A
Cited
US2078740A
Cited
US2222516A
Cited
US2399205A
Cited
US2399267A
Cited
US2338586A
Cited
US2324804A
Cited
US2454585A
Cited
US2494380A
Cited
US2598963A
Cited
US2685347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |