US3289992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hook structure for perforated boards
Assignee: Individual
•
Filing: 1965-11-08
•
Granted: 1966-12-06
•
Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 James P Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:09
CPC Classifications
A; A47; A47F; A47F5/00; A47F5/08; A47F5/0807; A47F5/0815; A47F5/0823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN ADJUSTABLE SUPPORTED STRUCTURE COMPRISING: A BOARD OF UNIFORM PREDETERMINED THICKNESS HAVING A HOLE OF PREDETERMINED SIZE EXTENDING BETWEEN ITS FRONT AND BACK SURFACES, A HOOK STRUCTURE HAVING A VERTICAL PORTION A LOWER END PORTION OF WHICH BEARS AGAINST THE FRONT FACE OF SAID BOARD, A BACKWARDLY TURNED PORTION ON THE UPPER END OF SAID VERTICAL PORTION AND EXTENDING THROUGH SAID OPENING IN SAID BOARD, AND AN UPWARDLY TURNED PORTION ON THE BACK END OF SAID BACKWARDLY TURNED PORTION ON THE BACKWARDLY TURNED PORTION OF SAID HOOK STRUCTURE BEING OF A SUBSTANTIALLY SQUARE CROSS SECTION, SAID HOLE BEING DEFORMED BY SAID SUBSTANTIALLY SQUARE CROSS SECTION TO PROVIDE AN INTERFERENCE FIT WITH THE HOLE OF SAID BOARD.
Claim 2
Dependent Claim
116 words
AN ADJUSTABLE SUPPORTED STRUCTURE COMPRISING: A BOARD OF UNIFORM PREDETERMINED THICKNESS HAVING A HOLE OF PREDETERMINED SIZE EXTENDING BETWEEN ITS FRONT AND BACK SURFACES, A HOOK STRUCTURE HAVING A VERTICAL PORTION A LOWER END PORTION OF WHICH BEARS AGAINST THE FRONT FACE OF SAID BOARD, A BACKWARDLY TURNED PORTION ON THE UPPER END OF SAID VERTICAL PORTION AND EXTENDING THROUGH SAID OPENING IN SAID BOARD, AND AN UPWARDLY TURNED PORTION ON THE BACK END OF SAID BACKWARDLY TURNED PORTION ON THE BACKWARDLY TURNED PORTION OF SAID HOOK STRUCTURE BEING OF A SUBSTANTIALLY SQUARE CROSS SECTION, SAID HOLE BEING DEFORMED BY SAID SUBSTANTIALLY SQUARE CROSS SECTION TO PROVIDE AN INTERFERENCE FIT WITH THE HOLE OF SAID BOARD.
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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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |