US3295238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sign element
Assignee: Ferranti Packard Ltd
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Filing: 1964-10-28
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Granted: 1967-01-03
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Expires: 1984-10-28
Abstract
No abstract record available.
Inventors
- 👤 Winrow Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:18
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/375; G08; G08B; G08B5/00; G08B5/22; G08B5/24; G08B5/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
IN AN INDICATING UNIT FOR A SIGN ASSEMBLY, WHEREIN AN INDICIA-FORMING ELEMENT HAVING AN AXIS OF ROTATION AND TWO SURFACES OF CONTRASTING APPEARANCE IS ROTATABLY SUPPORTED ON A FRAME THEREFOR, AND A MAGNET ADAPTED TO RESPOND TO AN APPLIED MAGNETIC FIELD IS MOUNTED ON SAID ELEMENT WITH A POLE ON OPPOSED SIDES OF SAID AXIS; THE PROVISION OF STOP MEANS ARRANGED AND CONSTRUCTED TO LIMIT THE RANGE OF ROTATION OF SAID ELEMENT TO LESS THAN 180*, SAID SURFACES BEING SO ARRANGED ON SAID ELEMENT THAT ONE SURFACE IS DISPLAYED AT ONE END OF SAID RANGE OF ROTATION AND THE OTHER SURFACE IS DISPLAYED AT THE OTHER END OF SAID RANGE OF ROTATION; A PAIR OF POLE PIECES CONNECTIBLE TO AN ELECTRIC CURRENT TO ASSUME OPPOSED AND REVERSIBLE POLARITIES, AND LOCATED TO PROVIDE, WITH EITHER POLARITY, THAT, THROUGHOUT SAID RANGE OF ROTATION, THE RESULTANT FORCE EXERTED BY SAID POLE PIECES ON SAID ELEMENT MAGNET POLES IS IN ONE DIRECTION; SAID ELEMENT AND SAID POLE PIECES BEING SO DESIGNED AND LOCATED THAT ONE PORTION OF SAID ELEMENT CONTACTS ONE POLE PIECE ON ROTATION IN ONE DIRECTION AND THE OTHER POLE PIECE ON ROTATION IN THE OTHER DIRECTION WHEREBY SAID STOP MEANS ARE THEREBY CONSTITUTED.
Claim 2
Dependent Claim
202 words
IN AN INDICATING UNIT FOR A SIGN ASSEMBLY, WHEREIN AN INDICIA-FORMING ELEMENT HAVING AN AXIS OF ROTATION AND TWO SURFACES OF CONTRASTING APPEARANCE IS ROTATABLY SUPPORTED ON A FRAME THEREFOR, AND A MAGNET ADAPTED TO RESPOND TO AN APPLIED MAGNETIC FIELD IS MOUNTED ON SAID ELEMENT WITH A POLE ON OPPOSED SIDES OF SAID AXIS; THE PROVISION OF STOP MEANS ARRANGED AND CONSTRUCTED TO LIMIT THE RANGE OF ROTATION OF SAID ELEMENT TO LESS THAN 180*, SAID SURFACES BEING SO ARRANGED ON SAID ELEMENT THAT ONE SURFACE IS DISPLAYED AT ONE END OF SAID RANGE OF ROTATION AND THE OTHER SURFACE IS DISPLAYED AT THE OTHER END OF SAID RANGE OF ROTATION; A PAIR OF POLE PIECES CONNECTIBLE TO AN ELECTRIC CURRENT TO ASSUME OPPOSED AND REVERSIBLE POLARITIES, AND LOCATED TO PROVIDE, WITH EITHER POLARITY, THAT, THROUGHOUT SAID RANGE OF ROTATION, THE RESULTANT FORCE EXERTED BY SAID POLE PIECES ON SAID ELEMENT MAGNET POLES IS IN ONE DIRECTION; SAID ELEMENT AND SAID POLE PIECES BEING SO DESIGNED AND LOCATED THAT ONE PORTION OF SAID ELEMENT CONTACTS ONE POLE PIECE ON ROTATION IN ONE DIRECTION AND THE OTHER POLE PIECE ON ROTATION IN THE OTHER DIRECTION WHEREBY SAID STOP MEANS ARE THEREBY CONSTITUTED.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |