US3489888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating point look-ahead binary multiplication system utilizing two's complement notation for representing negative numbers
Assignee: Electronic Associates Inc
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Filing: 1966-06-29
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Granted: 1970-01-13
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Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Wilhelm Jr
- 👤 Elliot Nestle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:55
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/483; G06F7/487; G06F7/4876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3116411A
Cited
US3159739A
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US3193669A
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US3192363A
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US3069095A
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US3304417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |