US2945156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tunable high-frequency apparatus
Assignee: General Electric Co
•
Filing: 1956-06-07
•
Granted: 1960-07-12
•
Expires: 1976-06-07
Abstract
No abstract record available.
Inventors
- 👤 Arnold Charles Alois
- 👤 Lind James Norrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:49
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/18; H01J23/20; H01J23/207
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1582555A
Cited
US2463519A
Cited
US2568325A
Cited
US2462866A
Cited
US2432571A
Cited
US2501534A
Cited
US2446017A
Cited
US2439831A
Cited
US2506955A
Cited
US2468655A
Cited
US2512901A
Cited
US2505572A
Cited
US2529950A
Cited
US2533741A
Cited
US2853647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |