US2439408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable radio transmitting and receiving set
Assignee: Motorola Solutions Inc
•
Filing: 1942-02-20
•
Granted: 1948-04-13
•
Expires: 1962-02-20
Abstract
No abstract record available.
Inventors
- 👤 Donald H Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:19
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/3827
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) | 1951-04-13 | 1951-10-13 | 1952-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-13 | 1955-10-13 | 1956-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-13 | 1959-10-13 | 1960-04-13 | $7700.00 | Window Closed / Lapsed |