US3116568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable drafting board
Assignee: Individual
•
Filing: 1962-06-25
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Granted: 1964-01-07
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Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 Henry C Morrison
- 👤 William H Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:47
CPC Classifications
A; A47; A47B; A47B27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A DRAWING BOARD SUPPORTING FRAME, INCLUDING: A PAIR OF HORIZONTALLY DISPOSED SPACED-APART BASE MEMBERS BOX-LIKE IN CROSS SECTION AND EACH HAVING A LONGITUDINALLY EXTENDING UPWARDLY OPEN SLOT; A FIRST PAIR OF TRACKS SLIDABLY RECEIVED, RESPECTIVELY, WITHIN THE SLOTS OF SAID PAIR OF BASE MEMBERS; WHEELS JOURNALED BY SAID BASE MEMBERS IN ROLLABLE CONTACT WITH SAID FIRST PAIR OF TRACKS; A SECOND PAIR OF TRACKS SUBSTANTIALLY U-SHAPED IN CROSS SECTION CONNECTED AT ONE END IN SPACED RELATION TO ONE OF SAID FIRST PAIR OF TRACKS AND EXTENDING ANGULARLY UPWARD THEREFROM; A PAIR OF BOARD SUPPORTING MEMBERS SLIDABLY ENGAGED WITH SAID SECOND PAIR OF TRACKS, SAID SUPPORTING MEMBERS INCLUDING A PAIR OF ELONGATED MEMBERS BOX-LIKE IN TRANSVERSE CROSS SECTION EACH HAVING AN ELONGATE SLOT IN ITS DOWNWARDLY DISPOSED WALL SLIDABLY RECEIVING THE RESPECTIVE ONE OF SECOND PAIR OF TRACKS, A PLURALITY OF OTHER WHEELS HAVING AXLES TRANSVERSELY JOURNALED BY SAID ELONGATED MEMBERS IN ROLLABLE SUPPORTING RELATION ALONG THE INNER SURFACE OF THE BIGHT PORTION OF THE RESPECTIVE ONE OF SAID SECOND SAID PAIR OF TRACKS; AND A DRAWING BOARD OVERLYING SAID SUPPORTING MEMBERS FOR MOVEMENTS OF SAID OVERLYING SAID SUPPORTING MEMBERS FOR MOVEMENT OF SAID BOARD TOWARD AND AWAY FROM AND LATERALLY OF A USER.
Claim 2
Dependent Claim
203 words
A DRAWING BOARD SUPPORTING FRAME, INCLUDING: A PAIR OF HORIZONTALLY DISPOSED SPACED-APART BASE MEMBERS BOX-LIKE IN CROSS SECTION AND EACH HAVING A LONGITUDINALLY EXTENDING UPWARDLY OPEN SLOT; A FIRST PAIR OF TRACKS SLIDABLY RECEIVED, RESPECTIVELY, WITHIN THE SLOTS OF SAID PAIR OF BASE MEMBERS; WHEELS JOURNALED BY SAID BASE MEMBERS IN ROLLABLE CONTACT WITH SAID FIRST PAIR OF TRACKS; A SECOND PAIR OF TRACKS SUBSTANTIALLY U-SHAPED IN CROSS SECTION CONNECTED AT ONE END IN SPACED RELATION TO ONE OF SAID FIRST PAIR OF TRACKS AND EXTENDING ANGULARLY UPWARD THEREFROM; A PAIR OF BOARD SUPPORTING MEMBERS SLIDABLY ENGAGED WITH SAID SECOND PAIR OF TRACKS, SAID SUPPORTING MEMBERS INCLUDING A PAIR OF ELONGATED MEMBERS BOX-LIKE IN TRANSVERSE CROSS SECTION EACH HAVING AN ELONGATE SLOT IN ITS DOWNWARDLY DISPOSED WALL SLIDABLY RECEIVING THE RESPECTIVE ONE OF SECOND PAIR OF TRACKS, A PLURALITY OF OTHER WHEELS HAVING AXLES TRANSVERSELY JOURNALED BY SAID ELONGATED MEMBERS IN ROLLABLE SUPPORTING RELATION ALONG THE INNER SURFACE OF THE BIGHT PORTION OF THE RESPECTIVE ONE OF SAID SECOND SAID PAIR OF TRACKS; AND A DRAWING BOARD OVERLYING SAID SUPPORTING MEMBERS FOR MOVEMENTS OF SAID OVERLYING SAID SUPPORTING MEMBERS FOR MOVEMENT OF SAID BOARD TOWARD AND AWAY FROM AND LATERALLY OF A USER.
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) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |