Patent US1873362A successfully refreshed from Google Patents.
US1873362A
Expired / Lapsed
US
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Porous lightning arrester
Assignee: Westinghouse Electric Corp
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Filing: 1929-08-06
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Granted: 1932-08-23
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Expires: 1949-08-06
Abstract
No abstract record available.
Inventors
- 👤 Tanberg Ragnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:01
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/16; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/249921; Y10T428/249953; Y10T428/249961; Y10T428/249981
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) | 1935-08-23 | 1936-02-22 | 1936-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-23 | 1940-02-22 | 1940-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-23 | 1944-02-22 | 1944-08-23 | $7700.00 | Window Closed / Lapsed |