US2697050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recirculation of waste pickle liquor
Assignee: Bethlehem Steel Corp
•
Filing: 1949-06-23
•
Granted: 1954-12-14
•
Expires: 1969-06-23
Abstract
No abstract record available.
Inventors
- 👤 Barnes Roger Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:35
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR THE PICKLING OF METAL CONTINUOUSLY PASSING THROUGH A LONGITUDINALLY DISPOSED PICKING BATH, COMPRISING THE HEATING OF AND THE ENERGIZING-FOR-FLOW OF THE PICKING SOLUTION OF SAID PICKLING BATH IN ITS ENTIRETY FOR CONTINUOUS UNIDIRECTIONAL CYCLICAL RECIRCULATION THROUGH SAID BATH AND THROUGH BATH TERMINALS INTERCONNECTING RETURN CONDUIT THEREFOR, THEREBY EFFECTING UNIFORM HEATING OF SAID PICKLING SOLUTION AND REPETITIVELY IMMERSED CONTACT THEREOF WITH SAID METAL.
Claim 2
Dependent Claim
65 words
A PROCESS FOR THE PICKLING OF METAL CONTINUOUSLY PASSING THROUGH A LONGITUDINALLY DISPOSED PICKING BATH, COMPRISING THE HEATING OF AND THE ENERGIZING-FOR-FLOW OF THE PICKING SOLUTION OF SAID PICKLING BATH IN ITS ENTIRETY FOR CONTINUOUS UNIDIRECTIONAL CYCLICAL RECIRCULATION THROUGH SAID BATH AND THROUGH BATH TERMINALS INTERCONNECTING RETURN CONDUIT THEREFOR, THEREBY EFFECTING UNIFORM HEATING OF SAID PICKLING SOLUTION AND REPETITIVELY IMMERSED CONTACT THEREOF WITH SAID METAL.
References Cited (Backward Citations)
US1544506A
Cited
US1718063A
Cited
US1837159A
Cited
US1943775A
Cited
US1999822A
Cited
US2135713A
Cited
US2234593A
Cited
US2216544A
Cited
US2314369A
Cited
US2529762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |