US3138705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic analog computer
Assignee: Individual
•
Filing: 1961-06-06
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Granted: 1964-06-23
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Expires: 1981-06-06
Abstract
No abstract record available.
Inventors
- 👤 Karl F Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:33
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/22; G06G7/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN AN ANALOG COMPUTER, IN COMBINATION, FIRST LOGARITHMIC CONVERTER MEANS FOR PRODUCING THE LOGARITHMIC ANALOG OF A COMBINATION OF INPUT SIGNALS, SECOND LOGARITHMIC CONVERTER MEANS FOR PRODUCING THE LOGARITHMIC ANALOG OF A PROGRESSIVELY VARYING CONTROL SIGNAL, COMPARATOR MEANS CONNECTED TO THE OUTPUTS OF BOTH SAID CONVERTER MEANS FOR DETECTING A MATCHING OF SAID LOGARITHMIC ANALOGS, AND OUTPUT MEANS CONTROLLED BY SAID COMPARATOR MEANS AND CONNECTED TO THE INPUT OF SAID SECOND CONVERTER MEANS FOR ASCERTAINING THE MAGNITUDE OF SAID CONTROL SIGNAL IN THE MATCHING CONDITION OF SAID LOGARITHMIC ANALOGS.
Claim 2
Dependent Claim
89 words
IN AN ANALOG COMPUTER, IN COMBINATION, FIRST LOGARITHMIC CONVERTER MEANS FOR PRODUCING THE LOGARITHMIC ANALOG OF A COMBINATION OF INPUT SIGNALS, SECOND LOGARITHMIC CONVERTER MEANS FOR PRODUCING THE LOGARITHMIC ANALOG OF A PROGRESSIVELY VARYING CONTROL SIGNAL, COMPARATOR MEANS CONNECTED TO THE OUTPUTS OF BOTH SAID CONVERTER MEANS FOR DETECTING A MATCHING OF SAID LOGARITHMIC ANALOGS, AND OUTPUT MEANS CONTROLLED BY SAID COMPARATOR MEANS AND CONNECTED TO THE INPUT OF SAID SECOND CONVERTER MEANS FOR ASCERTAINING THE MAGNITUDE OF SAID CONTROL SIGNAL IN THE MATCHING CONDITION OF SAID LOGARITHMIC ANALOGS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |