US2495579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna
Assignee: Individual
•
Filing: 1949-03-05
•
Granted: 1950-01-24
•
Expires: 1969-03-05
Abstract
No abstract record available.
Inventors
- 👤 William T Ferris
- 👤 Jr Frank J Klancnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:58
CPC Classifications
H; H01; H01Q; H01Q5/00; H01Q5/30; H01Q5/378
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1284155A
Cited
GB430548A
Cited
US2147142A
Cited
US2175363A
Cited
US2240298A
Cited
US2411976A
Cited
US2478313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |