Patent US3074635A successfully refreshed from Google Patents.
US3074635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic decimal-point indicator for computers
Assignee: US Philips Corp
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Filing: 1959-04-27
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Granted: 1963-01-22
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Borne Jean Paul Georges
- 👤 Charles-Georges Andre J Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:52
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/498
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
IN A COMPUTER HAVING A FIRST NUMBER RECORDER SERVING AS AN OUTPUT OF THE COMPUTER AND A SECOND NUMBER RECORDER DIVIDED INTO TWO PARTS AND SERVING AS AN INPUT OF THE COMPUTER, MEANS FOR INSERTING DECIMAL POINTS IN THE NUMBERS INDICATED BY THE FIRST AND SECOND RECORDERS, SAID MEANS COMPRISING A PLURALITY OF DECIMAL POINT SWITCHES FOR INSERTING A DECIMAL POINT BETWEEN ANY TWO SUCCESSIVE DIGIT PLACES OF THE SECOND NUMBER RECORDER, EACH OF SAID DECIMAL POINT SWITCHES BEING PROVIDED WITH MULTIPLE CONTACTS, A PULSE GENERATOR HAVING A PLURALITY OF OUTPUT TERMINALS, EACH TERMINAL WHEN ACTIVATED DELIVERING A SERIES OF PULSES, EACH TERMINAL DELIVERING ONE MORE PULSE THAN THE NEXT PRECEEDING TERMINAL, SAID CONTACTS BEING NORMALLY OPEN, ONE OF SAID CONTACTS BEING CLOSED WHEN A CALCULATION IS PERFORMED AND A DECIMAL POINT IS INSERTED IN THE SECOND NUMBER RECORDER, EACH CLOSED CONTACT CONNECTING AN OUTPUT OF THE PULSE GENERATOR TO AN INPUT TERMINAL OF A CLOSED-END SHIFT REGISTER, SAID REGISTER HAVING A PLURALITY OF OUTPUTS WITH EACH INPUT PULSE SUCCESSIVELY ENERGIZING AN OUTPUT OF SAID REGISTER, SAID OUTPUTS BEING CONNECTED TO AN INDICATING MEMBER FOR INDICATING A DECIMAL POINT BETWEEN TWO SUCCESSIVE DIGIT PLACES IN THE NUMBER RECORDED BY SAID FIRST NUMBER RECORDER.
Claim 2
Dependent Claim
203 words
IN A COMPUTER HAVING A FIRST NUMBER RECORDER SERVING AS AN OUTPUT OF THE COMPUTER AND A SECOND NUMBER RECORDER DIVIDED INTO TWO PARTS AND SERVING AS AN INPUT OF THE COMPUTER, MEANS FOR INSERTING DECIMAL POINTS IN THE NUMBERS INDICATED BY THE FIRST AND SECOND RECORDERS, SAID MEANS COMPRISING A PLURALITY OF DECIMAL POINT SWITCHES FOR INSERTING A DECIMAL POINT BETWEEN ANY TWO SUCCESSIVE DIGIT PLACES OF THE SECOND NUMBER RECORDER, EACH OF SAID DECIMAL POINT SWITCHES BEING PROVIDED WITH MULTIPLE CONTACTS, A PULSE GENERATOR HAVING A PLURALITY OF OUTPUT TERMINALS, EACH TERMINAL WHEN ACTIVATED DELIVERING A SERIES OF PULSES, EACH TERMINAL DELIVERING ONE MORE PULSE THAN THE NEXT PRECEEDING TERMINAL, SAID CONTACTS BEING NORMALLY OPEN, ONE OF SAID CONTACTS BEING CLOSED WHEN A CALCULATION IS PERFORMED AND A DECIMAL POINT IS INSERTED IN THE SECOND NUMBER RECORDER, EACH CLOSED CONTACT CONNECTING AN OUTPUT OF THE PULSE GENERATOR TO AN INPUT TERMINAL OF A CLOSED-END SHIFT REGISTER, SAID REGISTER HAVING A PLURALITY OF OUTPUTS WITH EACH INPUT PULSE SUCCESSIVELY ENERGIZING AN OUTPUT OF SAID REGISTER, SAID OUTPUTS BEING CONNECTED TO AN INDICATING MEMBER FOR INDICATING A DECIMAL POINT BETWEEN TWO SUCCESSIVE DIGIT PLACES IN THE NUMBER RECORDED BY SAID FIRST NUMBER RECORDER.
References Cited (Backward Citations)
US2819672A
Cited
US2141598A
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US2141597A
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US2538636A
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US2528394A
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US2769592A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |