Patent US2633526A successfully refreshed from Google Patents.
US2633526A
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Electrical circuit apparatus
Assignee: GTE Sylvania Inc
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Filing: 1949-05-13
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Granted: 1953-03-31
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Expires: 1969-05-13
Abstract
No abstract record available.
Inventors
- 👤 Willis W Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:58
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20224E
Cited
US1719456A
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CH144122A
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US2439408A
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US2474988A
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US2431198A
Cited
US2440308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |