US3670435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic in and out board
Assignee: WM A STEWARD CO
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Filing: 1970-10-27
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Granted: 1972-06-20
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Expires: 1990-10-27
Abstract
Abstract An ''''in and out'''' device is provided for indicating the whereabouts of the various personnel such as their availability on the premises or when they will return.
Inventors
- 👤 William A Steward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:16
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/001; G09B29/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
A magnetic ''''in and out'''' indicating board for indicating whether various personnel are ''''in'''' or ''''out'''' and when they will return, comprising a thin, verticaL sheet of nonferrous material having fixed indicia on both sides thereof, said indicia on one side being the mirror image of the indicia on the other side, said indicia including a plurality of names or the like arranged in a column along one edge of the sheet and ''''in'''' and ''''out'''' and time designations or the like along another edge thereof, a plurality of horizontal and vertical criss-crossing lines on each side of said sheet and dividing the opposite sides of said sheet into a plurality of areas corresponding to the indicia thereon, and a plurality of magnet pairs on opposite sides of said sheet with the magnets of each pair aligned on opposite sides of the sheet and held in position on said sheet by the mutual magnetic attraction therebetween, said magnets being movable to an appropriate area on said sheet to indicate the presence or absence or the like of personnel or the like, movement of a magnet on one side of the sheet effecting movement of a corresponding magnet on the other side thereof so that the indication is made simultaneously on both sides of the sheet.
Claim 2
Dependent Claim
215 words
A magnetic ''''in and out'''' indicating board for indicating whether various personnel are ''''in'''' or ''''out'''' and when they will return, comprising a thin, verticaL sheet of nonferrous material having fixed indicia on both sides thereof, said indicia on one side being the mirror image of the indicia on the other side, said indicia including a plurality of names or the like arranged in a column along one edge of the sheet and ''''in'''' and ''''out'''' and time designations or the like along another edge thereof, a plurality of horizontal and vertical criss-crossing lines on each side of said sheet and dividing the opposite sides of said sheet into a plurality of areas corresponding to the indicia thereon, and a plurality of magnet pairs on opposite sides of said sheet with the magnets of each pair aligned on opposite sides of the sheet and held in position on said sheet by the mutual magnetic attraction therebetween, said magnets being movable to an appropriate area on said sheet to indicate the presence or absence or the like of personnel or the like, movement of a magnet on one side of the sheet effecting movement of a corresponding magnet on the other side thereof so that the indication is made simultaneously on both sides of the sheet.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |