US2810906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic antenna
Assignee: Individual
•
Filing: 1951-08-29
•
Granted: 1957-10-22
•
Expires: 1971-08-29
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:17
CPC Classifications
H; H01; H01Q; H01Q23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1996804A
Cited
US1964804A
Cited
US2192187A
Cited
US2183562A
Cited
US2396884A
Cited
US2349976A
Cited
US2480164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |