Patent US2917438A successfully refreshed from Google Patents.
US2917438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical component and manufacture
Assignee: GTE Sylvania Inc
•
Filing: 1958-09-30
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Granted: 1959-12-15
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Expires: 1978-09-30
Abstract
No abstract record available.
Inventors
- 👤 Friend Albert Wiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:01
CPC Classifications
C; C25; C25D; C25D1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE METHOD OF PRODUCING AMETAL HELIX INCLUDING THE STEPS OF PARTIALLY SUBMERGING AN ANNULAR CATHODE SURFACE INTO A PLATING SOLUTION, DEPOSITING METAL ONTO SAID ANNULAR CATHODE SURFACE WHILE TURNING SAID ANNULAR CATHODE SURFACE ABOUT AN AXIS CONCENTRIC WITH THE CENTER OF SAID ANNULAR CATHODE SURFACE, AND CONTINUOUSLY STRIPPING THE BAND OF DEPOSITED METAL FROM SIAD SNNULAR CATHODE SURFACE.
Claim 2
Independent Claim
58 words
THE METHOD OF PRODUCING AMETAL HELIX INCLUDING THE STEPS OF PARTIALLY SUBMERGING AN ANNULAR CATHODE SURFACE INTO A PLATING SOLUTION, DEPOSITING METAL ONTO SAID ANNULAR CATHODE SURFACE WHILE TURNING SAID ANNULAR CATHODE SURFACE ABOUT AN AXIS CONCENTRIC WITH THE CENTER OF SAID ANNULAR CATHODE SURFACE, AND CONTINUOUSLY STRIPPING THE BAND OF DEPOSITED METAL FROM SIAD SNNULAR CATHODE SURFACE.
References Cited (Backward Citations)
US359349A
Cited
US381655A
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US395684A
Cited
US1254056A
Cited
US1850936A
Cited
US1959376A
Cited
GB668338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |