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US2564014A
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System for receiving communication signals without disturbance
Assignee: ANDRE A CARLIER
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Filing: 1947-07-09
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Granted: 1951-08-14
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Expires: 1967-07-09
Abstract
No abstract record available.
Inventors
- 👤 Lanuza Delfin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:31
CPC Classifications
H; H04; H04J; H04J1/00; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2288575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |