US3017573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrum analyzer
Assignee: Probescope Co
•
Filing: 1959-03-02
•
Granted: 1962-01-16
•
Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Richard R Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:32
CPC Classifications
G; G01; G01R; G01R23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2533251A
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US2507525A
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US2590809A
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US2524712A
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US2583323A
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US2661419A
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US2760081A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |