Patent US2229774A successfully refreshed from Google Patents.
US2229774A
Expired / Lapsed
US
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Common wave radio transmitter system
Assignee: Alcatel Lucent Deutschland AG
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Filing: 1938-06-17
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Granted: 1941-01-28
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Expires: 1958-06-17
Abstract
No abstract record available.
Inventors
- 👤 Schulze-Herringen Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:06
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/65; H04H20/67; H03; H03J; H03J7/00; H03J7/02; H03J7/16; H03L; H03L7/00; H03L7/02
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) | 1944-01-28 | 1944-07-29 | 1945-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-28 | 1948-07-29 | 1949-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-28 | 1952-07-29 | 1953-01-28 | $7700.00 | Window Closed / Lapsed |