US2095769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boron-and boron and carbon starter for mercury arc
Assignee: Westinghouse Electric Corp
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Filing: 1934-01-23
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Granted: 1937-10-12
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Expires: 1954-01-23
Abstract
No abstract record available.
Inventors
- 👤 Lloyd W Smede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:19
CPC Classifications
H; H01; H01J; H01J13/00; H01J13/02; H01J13/34; H01J13/36; H01J13/38; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2916
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-10-11 | 1941-04-12 | 1941-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-10-11 | 1945-04-12 | 1945-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-10-11 | 1949-04-12 | 1949-10-12 | $7700.00 | Window Closed / Lapsed |