Patent US2697130A successfully refreshed from Google Patents.
US2697130A
Expired / Lapsed
US
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Protection of metal against oxidation
Assignee: Westinghouse Electric Corp
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Filing: 1950-12-30
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Granted: 1954-12-14
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Expires: 1970-12-30
Abstract
No abstract record available.
Inventors
- 👤 Korbelak Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:55
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/04; H01B; H01B1/00; H01B1/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12597; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12833; Y10T428/1284; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12875; Y10T428/12903; Y10T428/1291; Y10T428/12944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN A DISCHARGE DEVICE, LEAD-IN CONDUCTORS FORMED OF A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND TUNGSTEN, A FILM OF PLATED CHROMIUM, ABOUT .00002'' THICK THEREON, SAID FILM HAVING NICKEL PLATED THEREON UNITED TO THE ENVELOPE OF SAID DEVICE BY A GRADED SEAL TERMINATING BEAD OF GLASS, AND COPPER PLATED ON THAT PORTION OF SAID LEAD EXTERNAL OF SAID BEAD.
Claim 2
Dependent Claim
62 words
IN A DISCHARGE DEVICE, LEAD-IN CONDUCTORS FORMED OF A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM AND TUNGSTEN, A FILM OF PLATED CHROMIUM, ABOUT .00002'' THICK THEREON, SAID FILM HAVING NICKEL PLATED THEREON UNITED TO THE ENVELOPE OF SAID DEVICE BY A GRADED SEAL TERMINATING BEAD OF GLASS, AND COPPER PLATED ON THAT PORTION OF SAID LEAD EXTERNAL OF SAID BEAD.
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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) | 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 |