Patent US4950562A successfully refreshed from Google Patents.
Patent US4123809A successfully refreshed from Google Patents.
US4123809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable changer-surface for infants
Assignee: Individual
•
Filing: 1977-08-30
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Granted: 1978-11-07
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Expires: 1997-08-30
Abstract
Abstract Folding planar structure for use as a changing surface for infants, particularly while away from home. A plural-part rigid board assembly includes a unitary cushioning pad cemented to the parts and hinging them together, and has sliding rod structure for board-to-board connection holding the three parts rigidly in plane when in use; parts of the sliding rod structure are always in view and evidence by position whether the assembly is safely secured together. When folded for storage the sliding rod assembly provides handle structure for carrying and also stand structure preventing the assembly from getting wet or soiled when rested on a floor or leaned against a wall.
Inventors
- 👤 Joan E. Pugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:20
CPC Classifications
A; A47; A47D; A47D5/00; A47D5/006; A47K; A47K3/00; A47K3/02; A47K3/03; A47K3/034
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
In a portable structure having plural members unfoldable in end-to-end configuration to form a surface upon which to support infants for changing, bathing and the like, the improvement comprising: means hinging said members together; and end accessible means for maintaining, at a first position, said plural members aligned when unfolded in end-to-end configuration, and for permitting, at a second position, folding of said plural members about the hinging means, the end-accessible means comprising a rod structure at each end of said configuration longitudinally slidable relative to said plural members in respective apertures therealong from said first position in which said rod structures together engage all said plural members to said second position in which each rod structure retracts to a respective end of said end-to-end configuration for permitting said folding.
Claim 2
Dependent Claim
130 words
In a portable structure having plural members unfoldable in end-to-end configuration to form a surface upon which to support infants for changing, bathing and the like, the improvement comprising: means hinging said members together; and end accessible means for maintaining, at a first position, said plural members aligned when unfolded in end-to-end configuration, and for permitting, at a second position, folding of said plural members about the hinging means, the end-accessible means comprising a rod structure at each end of said configuration longitudinally slidable relative to said plural members in respective apertures therealong from said first position in which said rod structures together engage all said plural members to said second position in which each rod structure retracts to a respective end of said end-to-end configuration for permitting said folding.
Claim 3
Dependent Claim
43 words
In a portable structure as recited in claim 1, means for preventing said portable structure from taking up water or soil from a floor on which set, comprising a portion of the rod structure extending as a stand therefrom in said second position.
Claim 4
Dependent Claim
44 words
In a portable structure as recited in claim 2, means for securing an infant to the portable structure, comprising flexible elongate means fixed substantially at a middle portion of the elongate structure in position for retaining the portable structure in folded configuration when folded.
Claim 5
Dependent Claim
31 words
In a portable structure as recited in claim 2, said rod structure comprising squared "U"-shape with the base of the squared "U" shape forming handle structure for carrying the portable structure.
Claim 6
Dependent Claim
15 words
In a portable structure as recited in claim 4, all said plural members being planar.
Claim 7
Dependent Claim
23 words
In a portable structure as recited in claim 5, all said plural members forming a "Z" shape when the portable structure is folded.
Claim 8
Dependent Claim
25 words
In a portable structure as recited in claim 2, the means for hinging comprising a cushioning pad covering and affixed to all said plural members.
Claim 9
Dependent Claim
97 words
In a portable structure as recited in claim 2, first, second and third of said plural members, a pad positionable for support by all said plural members, a first of said plural members foldable on a said means hinging to a position against a second of said plural members, leaving a first portion of said pad unsupported, said first portion of the pad flexibly foldable over a second portion of the pad with a third portion of the pad, having a third of said plural members thereover, proportioned for folding over the second portion of the pad.
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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) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |