US2803399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simultaneous equation solver
Assignee: Phillips Petroleum Co
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Filing: 1951-07-23
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Granted: 1957-08-20
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Expires: 1971-07-23
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Morgan
- 👤 William L Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:33
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/32; G06G7/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A COMPUTER FOR SOLVING CONVERGENT SYSTEMS OF LINEAR SIMULTANEOUS EQUATIONS COMPRISING, IN COMBINATION; A PLURALITY OF ELECTRICAL NETWORK, EACH OF SAID NETWORKS INCLUDING A VOLTAGE SOURCE, A PLURALITY OF FIRST POTENTIOMETERS, FIRST SWITCHING MEANS TO APPLY A VOLTAGE OF SELECTED POLARITY FROM SAID SOURCE ACROSS THE END TERMINALS OF EACH OF SAID FIRST POTENTIOMETERS, SECOND SWITCHING MEANS TO REVERSE SELECTIVELY THE POLARITY OF VOLTAGE APPLIED ACROSS THE END TERMINALS OF INDIVIDUAL ONES OF SAID FIRST POTENTIOMETERS, A SECOND POTENTIOMETERS, AND THIRD SWITCHING MEANS TO CONNECT THE RESPECTIVE END TERMINALS OF SAID SECOND POTENTIOM-
Claim 2
Dependent Claim
93 words
A COMPUTER FOR SOLVING CONVERGENT SYSTEMS OF LINEAR SIMULTANEOUS EQUATIONS COMPRISING, IN COMBINATION; A PLURALITY OF ELECTRICAL NETWORK, EACH OF SAID NETWORKS INCLUDING A VOLTAGE SOURCE, A PLURALITY OF FIRST POTENTIOMETERS, FIRST SWITCHING MEANS TO APPLY A VOLTAGE OF SELECTED POLARITY FROM SAID SOURCE ACROSS THE END TERMINALS OF EACH OF SAID FIRST POTENTIOMETERS, SECOND SWITCHING MEANS TO REVERSE SELECTIVELY THE POLARITY OF VOLTAGE APPLIED ACROSS THE END TERMINALS OF INDIVIDUAL ONES OF SAID FIRST POTENTIOMETERS, A SECOND POTENTIOMETERS, AND THIRD SWITCHING MEANS TO CONNECT THE RESPECTIVE END TERMINALS OF SAID SECOND POTENTIOM-
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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |