US2560558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio transmitting and receiving combination
Assignee: Collins Radio Co
•
Filing: 1946-07-24
•
Granted: 1951-07-17
•
Expires: 1966-07-24
Abstract
No abstract record available.
Inventors
- 👤 Davis Jane Elizabeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:35
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21955E
Cited
US1800372A
Cited
US2074440A
Cited
US2136606A
Cited
US2491540A
Cited
US2317547A
Cited
US2379395A
Cited
US2419593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |