Patent US3993647A successfully refreshed from Google Patents.
US2616845A
Expired / Lapsed
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Electrolytic polishing apparatus
Assignee: Armco Inc
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Filing: 1948-02-10
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Granted: 1952-11-04
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Expires: 1968-02-10
Abstract
No abstract record available.
Inventors
- 👤 John F Kreml
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:59
CPC Classifications
C; C25; C25F; C25F7/00; C25F3/00; C25F3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
ELECTROLYTIC POLISHING APPARATUS FOR TOPLOADING COMPRISING, IN COMBINATION, FLAT ANODE MEANS FOR SUPPORTING A BATCH OF PRODUCTS TO BE POLISHED AND HAVING OPENINGS THEREIN SMALLER THAN THE INDIVIDUALS PRODUCTS, COOPERATING FLAT OPEN MESH CATHODE MEANS ABOVE THE ANODE AND HAVING OPENINGS THEREIN OF SUFFICIENT SIZE TO ADMIT THE PRODUCTS TO THE ANODE WHEN CHARGED ONTO THE CATHODE, ELECTRICAL INSULATING SPACERS FIXEDLY SECURED TO SAID ANODE AND TO SAID CATHODE AND MAINTAINING SAID OPEN MESH CATHODE AT EFFEC-
Claim 2
Dependent Claim
77 words
ELECTROLYTIC POLISHING APPARATUS FOR TOPLOADING COMPRISING, IN COMBINATION, FLAT ANODE MEANS FOR SUPPORTING A BATCH OF PRODUCTS TO BE POLISHED AND HAVING OPENINGS THEREIN SMALLER THAN THE INDIVIDUALS PRODUCTS, COOPERATING FLAT OPEN MESH CATHODE MEANS ABOVE THE ANODE AND HAVING OPENINGS THEREIN OF SUFFICIENT SIZE TO ADMIT THE PRODUCTS TO THE ANODE WHEN CHARGED ONTO THE CATHODE, ELECTRICAL INSULATING SPACERS FIXEDLY SECURED TO SAID ANODE AND TO SAID CATHODE AND MAINTAINING SAID OPEN MESH CATHODE AT EFFEC-
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) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |