Patent DE146403C successfully refreshed from Google Patents.
Patent US2321272A successfully refreshed from Google Patents.
US2321272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio antenna
Assignee: Motorola Solutions Inc
•
Filing: 1941-07-02
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Granted: 1943-06-08
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Expires: 1961-07-02
Abstract
No abstract record available.
Inventors
- 👤 Rudolph A Becwar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:05
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/084; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32057; Y10T403/32541; Y10T403/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-06-07 | 1946-12-07 | 1947-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-07 | 1950-12-07 | 1951-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-07 | 1954-12-07 | 1955-06-08 | $7700.00 | Window Closed / Lapsed |