US2947863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear discriminators or the like
Assignee: Hoffman Electronics Corp
•
Filing: 1954-03-17
•
Granted: 1960-08-02
•
Expires: 1974-03-17
Abstract
No abstract record available.
Inventors
- 👤 James L Buie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:07
CPC Classifications
H; H03; H03D; H03D3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2145561A
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US2054676A
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US2286413A
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US2441957A
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US2695384A
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US2720584A
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US2704842A
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US2756376A
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US2713677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |