US2197485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Common wave transmitting system
Assignee: Alcatel Lucent Deutschland AG
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Filing: 1937-06-17
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Granted: 1940-04-16
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Expires: 1957-06-17
Abstract
No abstract record available.
Inventors
- 👤 Schulze-Herringen Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/65; H04H20/67; H03; H03L; H03L7/00; H03L7/06; H03L7/16
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) | 1943-04-16 | 1943-10-16 | 1944-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-16 | 1947-10-16 | 1948-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-16 | 1951-10-16 | 1952-04-16 | $7700.00 | Window Closed / Lapsed |