US2476323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multielectrode modulator
Assignee: AT&T Inc
•
Filing: 1948-05-19
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Granted: 1949-07-19
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Expires: 1968-05-19
Abstract
No abstract record available.
Inventors
- 👤 Alois J Rack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:25
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H03; H03C; H03C1/00; H03C1/36; H03F; H03F3/00; H03F3/04; H03F3/14; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/72; H03K5/00; H03K5/22; H03K5/24; H10; H10D; H10D99/00
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) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |