US3090426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coilable partition with chalk board
Assignee: DUBUQUE PRODUCTS Inc
•
Filing: 1961-10-20
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Granted: 1963-05-21
•
Expires: 1981-10-20
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Carlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:32
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/02; E06B9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
THE COMBINATION OF A HOUSING HAVING AN OPENING, A ROLLER JOURNALLED IN SAID HOUSING, A PARTITION FORMING WALL ATTACHED TO SAID ROLLER AND COILABLE ONTO AND UNCOILABLE FROM SAID ROLLER, SAID WALL BEING COMPOSED OF A PLURALITY OF INDIVIDUAL ELEMENTS, CONNECTING MEANS FOR SAID ELEMENTS, CERTAIN OF SAID ELEMENTS HAVING A CUTOUT PORTION EXTENDING PARTIALLY THERETHROUGH, A SLOT ALONG THE TOP AND BOTTOM OF SAID CUTOUT PORTION, SUCH SLOT PROVIDING AN EXTENSION OF THE INNER SURFACE OF THE CUTOUT PORTION, A FLEXIBLE SHEET CHALK BOARD INSERT OF A WIDTH GREATER THAN THE CUTOUT PORTION WHEREBY THE EDGES OF THE INSERT WILL EXTEND INTO THE SLOTS AT THE TOP AND BOTTOM THEREOF, A RETENTION STRIP ALONG THE ENDS OF THE CUTOUT FOR SECURING THE ENDS OF SAID INSERT IN PLACE, AN EXTRUDED REMOVABLE CHALK TRAY HAVING A HOOK OF A CONSTRUCTION FITTING INTO THE SLOT ALONG THE LOWER SIDE OF THE CUTOUT PORTION.
Claim 2
Dependent Claim
152 words
THE COMBINATION OF A HOUSING HAVING AN OPENING, A ROLLER JOURNALLED IN SAID HOUSING, A PARTITION FORMING WALL ATTACHED TO SAID ROLLER AND COILABLE ONTO AND UNCOILABLE FROM SAID ROLLER, SAID WALL BEING COMPOSED OF A PLURALITY OF INDIVIDUAL ELEMENTS, CONNECTING MEANS FOR SAID ELEMENTS, CERTAIN OF SAID ELEMENTS HAVING A CUTOUT PORTION EXTENDING PARTIALLY THERETHROUGH, A SLOT ALONG THE TOP AND BOTTOM OF SAID CUTOUT PORTION, SUCH SLOT PROVIDING AN EXTENSION OF THE INNER SURFACE OF THE CUTOUT PORTION, A FLEXIBLE SHEET CHALK BOARD INSERT OF A WIDTH GREATER THAN THE CUTOUT PORTION WHEREBY THE EDGES OF THE INSERT WILL EXTEND INTO THE SLOTS AT THE TOP AND BOTTOM THEREOF, A RETENTION STRIP ALONG THE ENDS OF THE CUTOUT FOR SECURING THE ENDS OF SAID INSERT IN PLACE, AN EXTRUDED REMOVABLE CHALK TRAY HAVING A HOOK OF A CONSTRUCTION FITTING INTO THE SLOT ALONG THE LOWER SIDE OF THE CUTOUT PORTION.
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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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |