Patent US2186934A successfully refreshed from Google Patents.
US2186934A
Expired / Lapsed
US
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Antenna construction
Assignee: Individual
•
Filing: 1939-07-11
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Granted: 1940-01-16
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Expires: 1959-07-11
Abstract
No abstract record available.
Inventors
- 👤 Palmer Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:18
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/084; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32057; Y10T74/00; Y10T74/18; Y10T74/18888
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) | 1943-01-15 | 1943-07-17 | 1944-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-15 | 1947-07-17 | 1948-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-15 | 1951-07-17 | 1952-01-16 | $7700.00 | Window Closed / Lapsed |