US3543239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency responsive anticoincident remote control system
Assignee: Susquehanna Corp
•
Filing: 1967-07-26
•
Granted: 1970-11-24
•
Expires: 1987-07-26
Abstract
No abstract record available.
Inventors
- 👤 Jacob L Wallace Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:22
CPC Classifications
G; G08; G08C; G08C19/00; G08C19/12; G08C19/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |