US2491629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna
Assignee: Zenith Electronics LLC
•
Filing: 1945-11-13
•
Granted: 1949-12-20
•
Expires: 1965-11-13
Abstract
No abstract record available.
Inventors
- 👤 George B Vernier
- 👤 Richard L Rost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:09
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10; H01Q1/103
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US946949A
Cited
US1045684A
Cited
US1064070A
Cited
US1412373A
Cited
US1701027A
Cited
US1795747A
Cited
US2137450A
Cited
US2327163A
Cited
US2391202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |