US2671608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical computer
Assignee: Hazeltine Research Inc
•
Filing: 1949-10-05
•
Granted: 1954-03-09
•
Expires: 1969-10-05
Abstract
No abstract record available.
Inventors
- 👤 Charles J Hirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:24
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/24; G06G7/14; G06G7/16; G06G7/161; G06G7/18; G06G7/1806; G06G7/19; G06G7/1921; G06G7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2313666A
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US2401729A
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US2412467A
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US2403873A
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US2422698A
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US2426910A
Cited
US2433254A
Cited
US2594731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |