Patent US2029698A successfully refreshed from Google Patents.
US2029698A
Expired / Lapsed
US
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Wave transmission network
Assignee: AT&T Inc
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Filing: 1933-04-28
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Granted: 1936-02-04
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Expires: 1953-04-28
Abstract
No abstract record available.
Inventors
- 👤 Hendrik W Bode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:20
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/01; H03H7/09; H03H7/0115; H03H7/17; H03H7/1708; H03H7/1716; H03H7/1725; H03H7/1741; H03H7/175; H03H7/1783; H03H7/1791
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) | 1939-02-03 | 1939-08-05 | 1940-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-03 | 1943-08-05 | 1944-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-03 | 1947-08-05 | 1948-02-04 | $7700.00 | Window Closed / Lapsed |