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US3267455A Expired / Lapsed US ⏱️ 0.0 years remaining

Pulse scanned reflective display

Assignee: General Precision Inc
•
Filing: 1963-09-25
•
Granted: 1966-08-16
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Expires: 1983-09-25
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Abstract

No abstract record available.

Inventors

  • 👤 John P Mcguire
  • 👤 John K Mckendry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 04:07
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/375

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 216 words
A REFLECTIVE DISPLAY MEMBER COMPRISING, A DISPLACEABLE ELEMENT HAVING OPPOSITELY DISPOSED PORTIONS WITH DIFFERENT REFLECTIVE CHARACTERISTICS AND INCLUDING A MAGNETIZED ELEMENT HAVING POLES OF OPPOSITE MAGNETIC POLARITY EACH RESPECTIVELY POSITIONED CENTRALLY OF A RESPECTIVE DIFFERENT REFLECTIVE PORTION, A FIXED MAGNETIC MEMBER POSITIONED CONTIGUOUS TO SAID DISPLACEABLE ELEMENT, SAID FIXED MAGNETIC MEMBER COACTING WITH ONE OF THE POLES OF SAID MAGNETIZED ELEMENT FOR MAINTAINING SAID DISPLACEABLE ELEMENT IN A FIRST STABLE STATE WHEREIN ONE REFLECTIVE CHARACTERISTIC IS VISIBLE AND COACTING WITH THE OTHER POLE OF SAID MAGNETIZED ELEMENT FOR MAINTAINING SAID DISPLACEABLE ELEMENT IN A SECOND STABLE STATE WHEREIN ONLY THE OTHER REFLECTIVE CHARACTERISTIC IS VISIBLE, FIRST SELECTIVELY OPERABLE MEANS FOR ESTABLISHING A FIRST UNIDIRECTIONAL MAGNETIC FIELD TO INTERACT WITH THE MAGNETIC FIELD OF SAID MAGNETIZED ELEMENT TO CAUSE SAID DISPLACEABLE ELEMENT TO BE DISPLACED TO A TRANSIENT POSITION INTERMEDIATE TO SAID FIRST AND SECOND STATES WHEREIN NEITHER OF THE POLES OF SAID MAGNETIZED ELEMENT IS CLOSELY ADJACENT TO SAID FIXED MAGNETIC MEMBER, AND SECOND SELECTIVELY OPERABLE MEANS FOR ESTABLISHING A SECOND UNIDIRECTIONAL MAGNETIC FIELD TO INTERACT WITH THE FIELD OF SAID MAGNETIZED ELEMENT TO DISPLACE SAID DISPLACEABLE ELEMENT TO ONE OR THE OTHER OF ITS TABLE STATES WHEREIN ONE OR THE OTHER OF THE POLES OF SAID MAGNETIZED ELEMENT IS CLOSELY ADJACENT SAID FIXED MAGNETIC MEMBER.
Claim 2
Dependent Claim 216 words
A REFLECTIVE DISPLAY MEMBER COMPRISING, A DISPLACEABLE ELEMENT HAVING OPPOSITELY DISPOSED PORTIONS WITH DIFFERENT REFLECTIVE CHARACTERISTICS AND INCLUDING A MAGNETIZED ELEMENT HAVING POLES OF OPPOSITE MAGNETIC POLARITY EACH RESPECTIVELY POSITIONED CENTRALLY OF A RESPECTIVE DIFFERENT REFLECTIVE PORTION, A FIXED MAGNETIC MEMBER POSITIONED CONTIGUOUS TO SAID DISPLACEABLE ELEMENT, SAID FIXED MAGNETIC MEMBER COACTING WITH ONE OF THE POLES OF SAID MAGNETIZED ELEMENT FOR MAINTAINING SAID DISPLACEABLE ELEMENT IN A FIRST STABLE STATE WHEREIN ONE REFLECTIVE CHARACTERISTIC IS VISIBLE AND COACTING WITH THE OTHER POLE OF SAID MAGNETIZED ELEMENT FOR MAINTAINING SAID DISPLACEABLE ELEMENT IN A SECOND STABLE STATE WHEREIN ONLY THE OTHER REFLECTIVE CHARACTERISTIC IS VISIBLE, FIRST SELECTIVELY OPERABLE MEANS FOR ESTABLISHING A FIRST UNIDIRECTIONAL MAGNETIC FIELD TO INTERACT WITH THE MAGNETIC FIELD OF SAID MAGNETIZED ELEMENT TO CAUSE SAID DISPLACEABLE ELEMENT TO BE DISPLACED TO A TRANSIENT POSITION INTERMEDIATE TO SAID FIRST AND SECOND STATES WHEREIN NEITHER OF THE POLES OF SAID MAGNETIZED ELEMENT IS CLOSELY ADJACENT TO SAID FIXED MAGNETIC MEMBER, AND SECOND SELECTIVELY OPERABLE MEANS FOR ESTABLISHING A SECOND UNIDIRECTIONAL MAGNETIC FIELD TO INTERACT WITH THE FIELD OF SAID MAGNETIZED ELEMENT TO DISPLACE SAID DISPLACEABLE ELEMENT TO ONE OR THE OTHER OF ITS TABLE STATES WHEREIN ONE OR THE OTHER OF THE POLES OF SAID MAGNETIZED ELEMENT IS CLOSELY ADJACENT SAID FIXED MAGNETIC MEMBER.

References Cited (Backward Citations)

US3042823A Cited
US3036300A Cited
US3140553A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-08-15 1970-02-14 1970-08-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-08-15 1974-02-14 1974-08-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-08-15 1978-02-14 1978-08-16 $7700.00 Window Closed / Lapsed

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