Patent US4222138A successfully refreshed from Google Patents.
US4222138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Posture case
Assignee: Individual
•
Filing: 1978-08-14
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Granted: 1980-09-16
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Expires: 1998-08-14
Abstract
Abstract A padded carrying case having an inclined plane structure therein. The case is made of a resilient material and when placed on a standard folding chair results in a forward-sloping seating surface. The amount of sloping or pitch can be varied by use of a supplemental shim detachably mounted within the carrying case. The inclined plane member and supplemental shim can be removed from the case and assembled to form a reading stand for musical scores and the like.
Inventors
- 👤 Richard L. Rowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:50
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/52; A47C27/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
A posture case for changing the pitch of a chair composed of: a relatively flat carrying case having an opening at at least one end and being made of a flexible material; and an inclined plane member fit within the carrying case, said inclined plane member being comprised of a springy plate and a shim firmly fastened along an end thereof, said plate and shim defining a storage space within the carying case; whereby the pitch of a chair may be effectively changed upon placement of the posture case thereon.
Claim 2
Dependent Claim
90 words
A posture case for changing the pitch of a chair composed of: a relatively flat carrying case having an opening at at least one end and being made of a flexible material; and an inclined plane member fit within the carrying case, said inclined plane member being comprised of a springy plate and a shim firmly fastened along an end thereof, said plate and shim defining a storage space within the carying case; whereby the pitch of a chair may be effectively changed upon placement of the posture case thereon.
Claim 3
Dependent Claim
25 words
The invention of claim 1 wherein the shim is provided with an arcuate surface for contacting the chair whereby to accommodate flexure of the plate.
Claim 4
Dependent Claim
25 words
The invention of claim 1 or 2 further comprising a resilient cushion mounted within the case so as to rest on the inclined plane member.
Claim 5
Dependent Claim
31 words
The invention of claim 3 wherein the carrying case is provided with a cloth lining and wherein the cusion is held in place by stitching between the lining and the case.
Claim 6
Dependent Claim
15 words
The invention of claim 1 further comprising a supplemental shim detachably mounted within the case.
Claim 7
Dependent Claim
40 words
The invention of claim 5 wherein the inclined plane member is slideably removable from the carrying case and wherein a socket is provided through the plate for receiving an end of the supplemental shim, whereby to form a music stand.
Claim 8
Dependent Claim
18 words
The invention of claim 6 wherein the opening of the carrying case is provided with a closable flap.
Claim 9
Dependent Claim
41 words
The invention of claim 7 wherein said carrying case is provided with a carrying handle mounted on the exterior of the flap and a stiffener means mounted on the interior of the flap in a position substantially opposite the carrying handle.
Claim 10
Dependent Claim
30 words
The invention of claim 8 wherein the carrying case is provided with a storage pocket mounted on its exterior substantially opposite the storage space defined by the plate and shim.
Claim 11
Dependent Claim
17 words
The invention of claim 1 wherein the inclined plane member is slideably removable from the carrying case.
References Cited (Backward Citations)
US2270598A
Cited
US445400A
Cited
US2047035A
Cited
US2900012A
Cited
US3032916A
Cited
US3222694A
Cited
US3148389A
Cited
US3167351A
Cited
US3511537A
Cited
US3580634A
Cited
US3773154A
Cited
US3876247A
Cited
US3938569A
Cited
US3934933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |