US5040848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seatback frame
Assignee: Ikeda Corp
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Filing: 1990-05-15
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Granted: 1991-08-20
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Expires: 2010-05-15
Abstract
Abstract A seatback frame is disclosed as having an inverted-U-shaped frame member including an elongated and generally horizontal upper member and an elongated side member extending generally downwardly from each extremity of the upper member. A side panel is secured to and extends generally upwardly along and forwardly from a lower portion of each side member. A lumbar supporting panel extends laterally between, and is supported by, the side panels. The lumbar supporting panel has a central portion extending generally upwardly and is secured to a central portion of the upper member.
Inventors
- 👤 Hideki Irie
- 👤 Yoshihiko Yamauchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:05
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/46
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
72 words
A seatback frame comprising: an inverted-U-shaped frame member including an elongated and generally horizontal upper member and an elongated side member extending generally downwardly from each extremity of the upper member; and a lumbar supporting panel extending laterally between and being secured to a lower portion of each side member, the lumbar supporting panel having a central portion extending generally upwardly and being secured to a central portion of the upper member.
Claim 2
Dependent Claim
72 words
A seatback frame comprising: an inverted-U-shaped frame member including an elongated and generally horizontal upper member and an elongated side member extending generally downwardly from each extremity of the upper member; and a lumbar supporting panel extending laterally between and being secured to a lower portion of each side member, the lumbar supporting panel having a central portion extending generally upwardly and being secured to a central portion of the upper member.
Claim 3
Dependent Claim
103 words
A seatback frame comprising: an inverted-U-shaped frame member including an elongated and generally horizontal upper member and an elongated side member extending generally downwardly from each extremity of the upper member; a side panel secured to and extending generally upwardly along and forwardly from a lower portion of each side member; and a lumbar supporting panel extending laterally between and being secured to each side panel, the lumbar supporting panel having a central portion extending generally upwardly and being secured to a central portion of the upper member, the lumbar supporting panel being forwardly spaced from the side members by the side plates.
Claim 4
Dependent Claim
103 words
A seatback frame comprising: an inverted-U-shaped frame member including an elongated and generally horizontal upper member and an elongated side member extending generally downwardly from each extremity of the upper member; a side panel secured to and extending generally upwardly along and forwardly from a lower portion of each side member; and a lumbar supporting panel extending laterally between and being secured to each side panel, the lumbar supporting panel having a central portion extending generally upwardly and being secured to a central portion of the upper member, the lumbar supporting panel being forwardly spaced from the side members by the side plates.
Claim 5
Dependent Claim
21 words
The seatback frame as defined by claim 1 or 2, wherein the U-shaped frame member comprises a single piece of tubing.
Claim 6
Dependent Claim
17 words
The seatback frame as defined by claim 3, wherein the lumbar supporting panel comprises a resilient material.
Claim 7
Dependent Claim
27 words
The seatback frame as defined by claim 3, further including at least one headrest bracket secured to the upper member to receive and hold a headrest support.
Claim 8
Dependent Claim
25 words
The seatback frame as defined by claim 3, further including a grip bracket secured to the frame member to mount a passenger assist grip thereto.
References Cited (Backward Citations)
FR1373267A
Cited
US3951454A
Cited
EP0046892A1
Cited
US4583783A
Cited
US4715653A
Cited
US4883320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-19 | 1995-02-18 | 1995-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-19 | 1999-02-18 | 1999-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-19 | 2003-02-18 | 2003-08-20 | $7700.00 | Window Closed / Lapsed |