US3140559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drafting table
Assignee: Hamilton Manufacturing Co
•
Filing: 1961-07-31
•
Granted: 1964-07-14
•
Expires: 1981-07-31
Abstract
No abstract record available.
Inventors
- 👤 Harry N Grow
- 👤 Egon R Hoenle
- 👤 Roy E Kanitz
- 👤 Earl J Cisler
- 👤 Floyd F Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:31
CPC Classifications
A; A47; A47B; A47B27/00; A47B27/04; A47B27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A DRAFTING TABLE COMPRISING A TABLE STRUCTURE HAVING A PAIR OF OPENINGS IN THE UPPER SURFACE THEREOF IN A SPACED APART RELATIONSHIP TO EACH OTHER, A PAIR OF VERTICALLY ADJUSTABLE COLUMNS MOUNTED IN SAID TABLE STRUCTURE AND EXTENDING VERTICALLY THROUGH THE RESPECTIVE OPENINGS, ROLLER MEANS CARRIED ON THE LOWER END OF EACH OF SAID COLUMNS, A PAIR OF VERTICALLY EXTENDING ROLLER GUIDES MOUNTED IN SAID TABLE AND COOPERATING WITH SAID ROLLER MEANS OF SAID COLUMNS TO VERTICALLY GUIDE THE LOWER ENDS OF SAID COLUMNS, SECOND ROLLER MEANS MOUNTED IN SAID TABLE ADJACENT SAID OPENINGS AND POSITIONED TO ENGAGE EACH OF SAID COLUMNS ON ONE EDGE THEREOF, AND MEANS ENGAGING THE OPPOSITE EDGES OF SAID COLUMNS AND CONTROLLING VERTICAL MOVEMENT
Claim 2
Dependent Claim
119 words
A DRAFTING TABLE COMPRISING A TABLE STRUCTURE HAVING A PAIR OF OPENINGS IN THE UPPER SURFACE THEREOF IN A SPACED APART RELATIONSHIP TO EACH OTHER, A PAIR OF VERTICALLY ADJUSTABLE COLUMNS MOUNTED IN SAID TABLE STRUCTURE AND EXTENDING VERTICALLY THROUGH THE RESPECTIVE OPENINGS, ROLLER MEANS CARRIED ON THE LOWER END OF EACH OF SAID COLUMNS, A PAIR OF VERTICALLY EXTENDING ROLLER GUIDES MOUNTED IN SAID TABLE AND COOPERATING WITH SAID ROLLER MEANS OF SAID COLUMNS TO VERTICALLY GUIDE THE LOWER ENDS OF SAID COLUMNS, SECOND ROLLER MEANS MOUNTED IN SAID TABLE ADJACENT SAID OPENINGS AND POSITIONED TO ENGAGE EACH OF SAID COLUMNS ON ONE EDGE THEREOF, AND MEANS ENGAGING THE OPPOSITE EDGES OF SAID COLUMNS AND CONTROLLING VERTICAL MOVEMENT
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |