Patent US3222637A successfully refreshed from Google Patents.
US3222637A
Expired / Lapsed
US
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Detection apparatus
Assignee: PAGE-WILSON Corp A CORP OF
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Filing: 1962-09-12
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Granted: 1965-12-07
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Expires: 1982-09-12
Abstract
No abstract record available.
Inventors
- 👤 George W Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:40
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/042; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19447
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A DETECTION SYSTEM RESPONSIVE TO AN ELECTRICAL EFFECT WHICH CHANGES IN OPPOSITE SENSES COMPRISING, (A) MEANS UNDER THE INFLUENCE OF SAID ELECTRICAL EFFECT HAVING MEANS PROVIDING AN OUTPUT CORRESPONDING TO EACH OF SAID OPPOSITE SENSES OF CHANGES IN SAID EFFECT, (B) COMPENSATING MEANS COUPLED TO SAID LAST NAMED MEANS FOR PROVIDING COMPENSATION WHICH CHANGES IN ONE SENSE AND IN AN OPPOSITE SENSE, (C) MEANS RESPONSIVE TO THE OUTPUT OF SAID OUTPUT MEANS OPERATIVELY COUPLED TO SAID COMPENSATING MEANS FOR OPERATING SAID COMPENSATING MEANS RELATIVELY RAPIDLY TO PROVIDE COMPENSATION IN SAID ONE SENSE, (D) MEANS RESPONSIVE TO THE OUTPUT OF SAID OUTPUT MEANS OPERATIVELY COUPLED TO SAID COMPENSATING MEANS FOR OPERATING SAID COMPENSATING MEANS RELATIVELY SLOWLY TO PROVIDE COMPENSATION IN SAID OPPOSITE SENSE, AND (E) MEANS FOR INDICATING SAID CHANGES IN SAID EFFECT RESPONSIVE TO AT LEAST ONE OF SAID OPPOSITE CHANGES IN SAID EFFECT.
Claim 2
Dependent Claim
144 words
A DETECTION SYSTEM RESPONSIVE TO AN ELECTRICAL EFFECT WHICH CHANGES IN OPPOSITE SENSES COMPRISING, (A) MEANS UNDER THE INFLUENCE OF SAID ELECTRICAL EFFECT HAVING MEANS PROVIDING AN OUTPUT CORRESPONDING TO EACH OF SAID OPPOSITE SENSES OF CHANGES IN SAID EFFECT, (B) COMPENSATING MEANS COUPLED TO SAID LAST NAMED MEANS FOR PROVIDING COMPENSATION WHICH CHANGES IN ONE SENSE AND IN AN OPPOSITE SENSE, (C) MEANS RESPONSIVE TO THE OUTPUT OF SAID OUTPUT MEANS OPERATIVELY COUPLED TO SAID COMPENSATING MEANS FOR OPERATING SAID COMPENSATING MEANS RELATIVELY RAPIDLY TO PROVIDE COMPENSATION IN SAID ONE SENSE, (D) MEANS RESPONSIVE TO THE OUTPUT OF SAID OUTPUT MEANS OPERATIVELY COUPLED TO SAID COMPENSATING MEANS FOR OPERATING SAID COMPENSATING MEANS RELATIVELY SLOWLY TO PROVIDE COMPENSATION IN SAID OPPOSITE SENSE, AND (E) MEANS FOR INDICATING SAID CHANGES IN SAID EFFECT RESPONSIVE TO AT LEAST ONE OF SAID OPPOSITE CHANGES IN SAID EFFECT.
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |