Patent US2259329A successfully refreshed from Google Patents.
US2259329A
Expired / Lapsed
US
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Protective system for vapor electric devices
Assignee: Westinghouse Electric Corp
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Filing: 1940-08-02
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Granted: 1941-10-14
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Expires: 1960-08-02
Abstract
No abstract record available.
Inventors
- 👤 Slepian Joseph
- 👤 Joseph H Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:23
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/125; H02H7/127
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) | 1944-10-13 | 1945-04-14 | 1945-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-13 | 1949-04-14 | 1949-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-13 | 1953-04-14 | 1953-10-14 | $7700.00 | Window Closed / Lapsed |