US3413560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching type fm detector
Assignee: Thomas International Corp
•
Filing: 1965-06-07
•
Granted: 1968-11-26
•
Expires: 1985-06-07
Abstract
No abstract record available.
Inventors
- 👤 Peter H Van Aurooy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:23
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2344678A
Cited
US2617018A
Cited
US3163826A
Cited
US3275938A
Cited
US3290613A
Cited
US3204190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |