Patent US2482549A successfully refreshed from Google Patents.
US2482549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for receiving radio signals
Assignee: Individual
•
Filing: 1943-12-03
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Granted: 1949-09-20
•
Expires: 1963-12-03
Abstract
No abstract record available.
Inventors
- 👤 Robert T Killman
- 👤 Frederick W Beesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:47
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/30
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |