US2984796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplitude modulation monitor
Assignee: Individual
•
Filing: 1957-03-25
•
Granted: 1961-05-16
•
Expires: 1977-03-25
Abstract
No abstract record available.
Inventors
- 👤 Charles J Affelder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:44
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1999869A
Cited
US2125992A
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US2069934A
Cited
US2216232A
Cited
DE724028C
Cited
US2496259A
Cited
GB629545A
Cited
US2598370A
Cited
US2548635A
Cited
US2754363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |