Patent US3610229A successfully refreshed from Google Patents.
US2245755A
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Assignee: Westinghouse Electric Corp
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Filing: 1937-12-09
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Granted: 1941-06-17
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Expires: 1957-12-09
Abstract
No abstract record available.
Inventors
- 👤 Walter E Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:59
CPC Classifications
H; H01; H01K; H01K7/00; H01K7/02; B; B60; B60Q; B60Q11/00; F; F21; F21S; F21S41/00; F21S41/10; F21S41/14; F21S41/162; F21S41/20; F21S41/28; F21S41/30; F21S41/32; F21S41/321
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) | 1944-06-16 | 1944-12-16 | 1945-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-06-16 | 1948-12-16 | 1949-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-06-16 | 1952-12-16 | 1953-06-17 | $7700.00 | Window Closed / Lapsed |