Patent US7647595B2 successfully refreshed from Google Patents.
Patent US4232189A successfully refreshed from Google Patents.
Patent US2640930A successfully refreshed from Google Patents.
US2640930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna assembly
Assignee: International Standard Electric Corp
•
Filing: 1950-01-12
•
Granted: 1953-06-02
•
Expires: 1970-01-12
Abstract
No abstract record available.
Inventors
- 👤 Frank J Lundburg
- 👤 Francis X Bucher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:56
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/28; A; A01; A01J; A01J7/00; A01J7/02; H01Q15/00; H01Q15/02; H01Q15/12; H01Q21/24; H01Q3/00; H01Q3/12; H01Q3/14; H03; H03H; H03H7/00; H03H7/38; H03H7/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1860123A
Cited
US1912754A
Cited
GB553970A
Cited
US2465416A
Cited
US2532920A
Cited
US2532919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |