US2849677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical circuit analyzer
Assignee: DIT MCO Inc
•
Filing: 1954-12-01
•
Granted: 1958-08-26
•
Expires: 1974-12-01
Abstract
No abstract record available.
Inventors
- 👤 Warren W Hannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:09
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/12; G01R31/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1089814A
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US2329491A
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US2376232A
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US2581497A
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US2586125A
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US2584680A
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US2614152A
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US2576892A
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US2622130A
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US2762014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |