Patent US4328803B1 successfully refreshed from Google Patents.
US3048797A
Expired / Lapsed
US
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Semiconductor modulator
Assignee: RCA Corp
•
Filing: 1957-04-30
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Granted: 1962-08-07
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Expires: 1977-04-30
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Linder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:49
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |