US3555702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Classroom seating chart with movable elements
Assignee: Individual
•
Filing: 1968-05-13
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Granted: 1971-01-19
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Expires: 1988-05-13
Abstract
Abstract A CLASSROOM SEATING CHART CONSISTING OF A BASE SHEET AND A PLURALITY OF INDIVIDUAL CHART LIKE UNITS REMOVABLY AFFIXED THERETO AND CAPABLE OF RECEIVING DESIRABLE INDICIA. EACH OF THE CHART LIKE UNITS HAS A SELF-ADHERING MATERIAL REMOVABLY AFFIXING IT TO THE BASE SHEET SO THAT EACH UNIT MAY BE REMOVED TO AN ALTERNATE LOCATION OR REMOVED FROM THE BASE SHEET AS THE STUDENT SEATING AND LOCATION VARIES IN THE CLASSROOM IN WHICH THE SEATING CHART IS USED.
Inventors
- 👤 Sara Louise Van Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:03
CPC Classifications
G; G09; G09B; G09B29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |