Patent US3775139A successfully refreshed from Google Patents.
Patent US2549678A successfully refreshed from Google Patents.
US2549678A
Expired / Lapsed
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Method of and apparatus for electroforming metal articles
Assignee: CG Conn Ltd
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Filing: 1946-08-23
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Granted: 1951-04-17
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Expires: 1966-08-23
Abstract
No abstract record available.
Inventors
- 👤 Ronald M Fiandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:20
CPC Classifications
C; C25; C25D; C25D1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
APPARATUS FOR ELECTROFORMING HORN BELLS OR THE LIKE COMPRISING A DEPOSITING TANK TO CONTAIN AN ELECTROLYTE HAVING A SOLUTION OF THE METAL TO BE DEPOSITED, AN ELONGATED CATHODE OF A MATERIAL TO WHICH METAL DOES NOT READILY ADHERE EXTENDING VERTICALLY INTO THE CENTRAL PART OF THE TANK AND TAPERING FROM ITS UPPER END TO A MINIMUM DIAMETER AT ITS BOTTOM, AN ANNULAR ANODE OF INERT MATERIAL AROUND AND SPACED FROM THE CATHODE AND FLARING FROM A MINIMUM DIAMETER AT ITS UPPER END TO A MAXIMUM DIAMETER AT ITS LOWER END, A SOLUTION INLET PIPE DISCHARGING UPWARDLY ADJACENT THE LOWER END OF THE CATHODE, MEANS FOR MAINTAINING A CONSTANT CIRCULATION OF SOLUTION
Claim 2
Dependent Claim
111 words
APPARATUS FOR ELECTROFORMING HORN BELLS OR THE LIKE COMPRISING A DEPOSITING TANK TO CONTAIN AN ELECTROLYTE HAVING A SOLUTION OF THE METAL TO BE DEPOSITED, AN ELONGATED CATHODE OF A MATERIAL TO WHICH METAL DOES NOT READILY ADHERE EXTENDING VERTICALLY INTO THE CENTRAL PART OF THE TANK AND TAPERING FROM ITS UPPER END TO A MINIMUM DIAMETER AT ITS BOTTOM, AN ANNULAR ANODE OF INERT MATERIAL AROUND AND SPACED FROM THE CATHODE AND FLARING FROM A MINIMUM DIAMETER AT ITS UPPER END TO A MAXIMUM DIAMETER AT ITS LOWER END, A SOLUTION INLET PIPE DISCHARGING UPWARDLY ADJACENT THE LOWER END OF THE CATHODE, MEANS FOR MAINTAINING A CONSTANT CIRCULATION OF SOLUTION
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |