US2539455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic polishing of metals
Assignee: Individual
•
Filing: 1944-01-27
•
Granted: 1951-01-30
•
Expires: 1964-01-27
Abstract
No abstract record available.
Inventors
- 👤 Mazia Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:24
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/16; C25F7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
IN THE ART OF ELECTROLYTIC POLISHING OF A METAL WHEREIN THE METAL TO BE POLISHED IS SUBJECTED TO THE COMBINED ACTION OF AN ELECTROLYTIC POLISHING ELECTROLYTE AND DIRECT ELECTRIC CURRENT, WITH THE SAID METAL AS ANODE, THE PROCESS WHICH COMPRISES PRODUCING RELATIVE MOTION BETWEEN THE METAL SURFACE TO BE POLISHED AND A LAYER OF ELECTRICALLY
Claim 2
Dependent Claim
55 words
IN THE ART OF ELECTROLYTIC POLISHING OF A METAL WHEREIN THE METAL TO BE POLISHED IS SUBJECTED TO THE COMBINED ACTION OF AN ELECTROLYTIC POLISHING ELECTROLYTE AND DIRECT ELECTRIC CURRENT, WITH THE SAID METAL AS ANODE, THE PROCESS WHICH COMPRISES PRODUCING RELATIVE MOTION BETWEEN THE METAL SURFACE TO BE POLISHED AND A LAYER OF ELECTRICALLY
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) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |