US2677765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna element
Assignee: Individual
•
Filing: 1950-03-09
•
Granted: 1954-05-04
•
Expires: 1970-03-09
Abstract
No abstract record available.
Inventors
- 👤 James W Collins
- 👤 Harold G Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:29
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/36; H01Q1/38; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US469663A
Cited
US1305104A
Cited
GB191102242A
Cited
US1495537A
Cited
US1684009A
Cited
US1981090A
Cited
US1917205A
Cited
US2160258A
Cited
GB502460A
Cited
US2412249A
Cited
US2440597A
Cited
US2542884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |