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US2830114A
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Vibrating electrode pickup for the transmission of electrostatic recordings
Assignee: Battelle Development Corp
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Filing: 1951-10-26
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Granted: 1958-04-08
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Expires: 1971-10-26
Abstract
No abstract record available.
Inventors
- 👤 Chester F Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:15
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/23; H04N1/29; G; G03; G03G; G03G15/00; G03G15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB384258A
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US1926405A
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US2063614A
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GB456810A
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US2143213A
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GB512765A
Cited
US2197050A
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US2200741A
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US2297398A
Cited
US2277013A
Cited
US2331770A
Cited
US2512015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |