Patent US3278730A successfully refreshed from Google Patents.
US3278730A
Expired / Lapsed
US
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Computer especially useful in computing the square root of the product of two values
Assignee: United Gas Corp
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Filing: 1963-04-15
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Granted: 1966-10-11
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 Durward F Searcy
- 👤 Thomas W Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:42
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/02; G06F1/03; G06F1/0314; G06F7/00; G06F7/38; G06F7/48; G06F7/544; G06F7/552; G06F7/5525; G06K; G06K11/00; G06F2101/00; G06F2101/08; G06F2101/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
A COMPUTER FOR SOLVING THE EQUATION Z=$XY COMPRISING, A BINARY COUNTER HAVING A PLURALITY OF SUCCESSIVE ENTRY POINTS, MEANS FOR GENERATING A SIGNAL REPRESENTATIVE OF THE LOGARITHM X AND A SECOND SIGNAL REPRESENTATIVE OF THE LOGARITHM Y-LOGARITHM X, MEANS FOR ENTERING THE FIRST SIGNAL INTO THE BINARY COUNTER AT A FIRST ENTRY POINT AND FOR ENTERING THE SECOND SIGNAL INTO SAID BINARY COUNTER AT THE NEXT LOWER ENTRY POINT FROM SAID FIRST ENTRY POINT WHEREBY SAID SECOND SIGNAL VALUE IS HALVED IN ITS ADDITION TO SAID FIRST SIGNAL VALUE IN SAID COUNTER, MEANS FOR COMPLEMENTING SAID COUNTER, AN ACCUMULATOR, MEANS FOR SIMULTANEOUSLY GENERATING A SECOND SIGNAL REPRESENTATIVE OF A LOGARITHMIC VALUE AND A LINEAR SIGNAL AND INTRODUCING THEM
References Cited (Backward Citations)
US3194951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |