Patent US4238097A successfully refreshed from Google Patents.
US4238097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conductor's chair
Assignee: Wenger Corp
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Filing: 1978-02-17
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Granted: 1980-12-09
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Expires: 1998-02-17
Abstract
Abstract A conductor's chair, podium and stand wherein a podium has a flat standing area at a relatively low level and both the chair and stand have a plurality of generally horizontally-extending legs with certain of the legs having a greater length to underlie and balance the off-center weight of the chair and stand, respectively, and with the longer legs being positionable under the podium to bring the chair and stand relatively close together and with minimal leg exposure beyond the perimeter of the podium. The chair and stand are of separable parts with interengaging sections which may be assembled in only one relation to assure stability in use.
Inventors
- 👤 Herman A. Clausen
- 👤 David R. Boeddeker
- 👤 Logan W. Johnson
- 👤 Jerry A. Wenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:18
CPC Classifications
A; A47; A47B; A47B19/00; A47B19/06; A47C; A47C7/00; A47C7/002; A47C7/004; A47C7/50; A47C7/506; A47C9/00; A47C9/08; A47B97/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A chair frame structure comprising, a tubular base with a plurality of generally horizontal front and rear legs radiating from an axis centrally of said base and with said front legs being of a greater length than the rear legs, a column positionable in said base to extend upwardly along said axis having a hollow post of generally square cross section and an extendable tubular member positioned therein, means at the upper end of said tubular member for mounting a chair seat positioned forwardly of said axis to overlie said front legs, means carried on both said base and the lower end of the column to permit insertion of the column into the base in only one rotative position of the column including a fixed protruding pin on one of said base and column and an open-ended slot in a wall of the other of said base and column whereby the slot receives said pin upon insertion of a lower end of said hollow post into said base, and means permitting only one rotational orientation of the tubular member to the hollow post including a co-acting protrusion and a longitudinally-extending recess formed one in the tubular member and the other in the hollow post.
Claim 2
Dependent Claim
204 words
A chair frame structure comprising, a tubular base with a plurality of generally horizontal front and rear legs radiating from an axis centrally of said base and with said front legs being of a greater length than the rear legs, a column positionable in said base to extend upwardly along said axis having a hollow post of generally square cross section and an extendable tubular member positioned therein, means at the upper end of said tubular member for mounting a chair seat positioned forwardly of said axis to overlie said front legs, means carried on both said base and the lower end of the column to permit insertion of the column into the base in only one rotative position of the column including a fixed protruding pin on one of said base and column and an open-ended slot in a wall of the other of said base and column whereby the slot receives said pin upon insertion of a lower end of said hollow post into said base, and means permitting only one rotational orientation of the tubular member to the hollow post including a co-acting protrusion and a longitudinally-extending recess formed one in the tubular member and the other in the hollow post.
References Cited (Backward Citations)
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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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |