US2566820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal mixing system
Assignee: Lanteris Space LLC
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Filing: 1947-08-22
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Granted: 1951-09-04
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Expires: 1967-08-22
Abstract
No abstract record available.
Inventors
- 👤 William E Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:24
CPC Classifications
H; H03; H03C; H03C5/00; H01; H01J; H01J25/00; H01J25/02; H01J25/10; H01J25/12; H03D; H03D7/00; H03D7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |