Patent US3496385A successfully refreshed from Google Patents.
US3496385A
Expired / Lapsed
US
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High voltage compensated transistorized switching apparatus
Assignee: Xerox Corp
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Filing: 1966-02-28
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Granted: 1970-02-17
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Charles L Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:25
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/10; H03K17/51; H03K17/56; H03K17/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1020673B
Cited
US3056043A
Cited
US3007061A
Cited
US2997606A
Cited
US3268776A
Cited
US3244910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |