US3418587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High sensitivity and power signal detecting device
Assignee: American Electronic Laboratories Inc
•
Filing: 1965-06-04
•
Granted: 1968-12-24
•
Expires: 1985-06-04
Abstract
No abstract record available.
Inventors
- 👤 Riebman Leon
- 👤 Frank E Mcdonnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:25
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/02; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2981876A
Cited
US2904704A
Cited
US3267340A
Cited
US3140452A
Cited
US3241079A
Cited
US3312838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |