US2997175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical computing apparatus
Assignee: Epsco Inc
•
Filing: 1958-11-18
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Granted: 1961-08-22
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Expires: 1978-11-18
Abstract
No abstract record available.
Inventors
- 👤 Bernard M Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:49
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/60; G06F7/68; G01; G01G; G01G19/00; G01G19/22; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/133; G05D11/134
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2371040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |