US3254300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system responsive to the time interval between events
Assignee: GPE Controls Inc
•
Filing: 1960-09-07
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Granted: 1966-05-31
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Expires: 1980-09-07
Abstract
No abstract record available.
Inventors
- 👤 George A Prell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:37
CPC Classifications
G; G04; G04F; G04F10/00; G04F10/10; B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/188; B65H23/1882
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN A SENSING CIRCUIT, MEANS FOR DETERMINING THE RELATIVE TIME OF TWO EVENTS, COMPRISING: MEANS FOR DERIVING A SIGNAL AT THE TIME OF OCCURRANCE OF EACH EVENT; A PAIR OF MULTIVIBRATOR CIRCUITS CONNECTED WITH SAID MEANS, EACH CIRCUIT HAVING A CONDUCTING AND A NONCONDUCTING SECTION, THE SECTIONS OF ONE OF SAID MULTIVIBRATOR CIRCUITS BEING ACTUATED BY A RESPECTIVE ONE OF SAID SIGNALS TO REVERSE THE CONDITIONS THEREOF FOR A PREDETERMINED PERIOD, THE SECTIONS OF THE OTHER OF SAID MULTIVIBRATOR CIRCUITS BEING ACTUATED BY THE OTHER OF SAID SIGNALS TO REVERSE THE CONDITIONS THEREOF FOR A PREDETERMINED PERIOD; A LOAD CIRCUIT CONECTED BETWEEN THE CONDUCTING SECTION OF ONE MULTIVIBRATOR CIRCUIT AND THE NONCONDUCTING SECTION OF THE OTHER MULTIVIBRATOR CIRCUIT; A CAPACITOR CONNECTED BETWEEN A PORTION OF SAID RESISTANCE LOAD NETWORK AND A REFERENCE POTENTIAL, THE CHARGE ON SAID CAPACITOR SHIFTING IN ONE DIRECTION WHEN ONE OF SAID EVENTS OCCURS FIRST AND SHIFTING IN THE OTHER DIRECTION WHEN THE OTHER OF SAID EVENTS OCCURS FIRST, THE RESULTANT SHIFTING OF THE CHARGE IN EITHER OF SAID
Claim 2
Dependent Claim
173 words
IN A SENSING CIRCUIT, MEANS FOR DETERMINING THE RELATIVE TIME OF TWO EVENTS, COMPRISING: MEANS FOR DERIVING A SIGNAL AT THE TIME OF OCCURRANCE OF EACH EVENT; A PAIR OF MULTIVIBRATOR CIRCUITS CONNECTED WITH SAID MEANS, EACH CIRCUIT HAVING A CONDUCTING AND A NONCONDUCTING SECTION, THE SECTIONS OF ONE OF SAID MULTIVIBRATOR CIRCUITS BEING ACTUATED BY A RESPECTIVE ONE OF SAID SIGNALS TO REVERSE THE CONDITIONS THEREOF FOR A PREDETERMINED PERIOD, THE SECTIONS OF THE OTHER OF SAID MULTIVIBRATOR CIRCUITS BEING ACTUATED BY THE OTHER OF SAID SIGNALS TO REVERSE THE CONDITIONS THEREOF FOR A PREDETERMINED PERIOD; A LOAD CIRCUIT CONECTED BETWEEN THE CONDUCTING SECTION OF ONE MULTIVIBRATOR CIRCUIT AND THE NONCONDUCTING SECTION OF THE OTHER MULTIVIBRATOR CIRCUIT; A CAPACITOR CONNECTED BETWEEN A PORTION OF SAID RESISTANCE LOAD NETWORK AND A REFERENCE POTENTIAL, THE CHARGE ON SAID CAPACITOR SHIFTING IN ONE DIRECTION WHEN ONE OF SAID EVENTS OCCURS FIRST AND SHIFTING IN THE OTHER DIRECTION WHEN THE OTHER OF SAID EVENTS OCCURS FIRST, THE RESULTANT SHIFTING OF THE CHARGE IN EITHER OF SAID
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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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |