Patent US5034742A successfully refreshed from Google Patents.
Patent US2957966A successfully refreshed from Google Patents.
Patent US4217523A successfully refreshed from Google Patents.
Patent US3994783A successfully refreshed from Google Patents.
Patent US2832892A successfully refreshed from Google Patents.
US2832892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning device for ultra-high frequency circuits
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1954-12-24
•
Granted: 1958-04-29
•
Expires: 1974-12-24
Abstract
No abstract record available.
Inventors
- 👤 Matthew W Slate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:47
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2246928A
Cited
FR870011A
Cited
US2563299A
Cited
US2601338A
Cited
US2513392A
Cited
US2629860A
Cited
US2773989A
Cited
US2807724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |