US4161794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable cushion
Assignee: Bengt Petersson New Products Investment AB
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Filing: 1976-06-07
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Granted: 1979-07-24
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Expires: 1996-06-07
Abstract
Abstract Inflatable resting cushion, the supporting part of which is made of two sheets of a flexible material, which sheets are joined together along defining lines. Said lines define the shape of the cushion and divide the same into two inflatable air compartments between which the air communication is kept interrupted. The one of said defining lines, which defines the limits of separation of the two inflatable compartments from each other, exhibits a curved shape.
Inventors
- 👤 Kristina E. Darnfors
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:41
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/38; A47C7/383
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
93 words
A substantially annular inflatable resting cushion having two ends and a middle section and comprising two sheets of a flexible material joined together along defining border lines which define the shape of the cushion, said cushion being divided into two separate inflatable compartments by a curved defining line in the middle section, each of said compartments having a reduced portion in overlapping relationship with the other of said compartments in said middle portion such that a radius passing through the middle section will pass through the reduced portion of each of the compartments.
Claim 2
Dependent Claim
93 words
A substantially annular inflatable resting cushion having two ends and a middle section and comprising two sheets of a flexible material joined together along defining border lines which define the shape of the cushion, said cushion being divided into two separate inflatable compartments by a curved defining line in the middle section, each of said compartments having a reduced portion in overlapping relationship with the other of said compartments in said middle portion such that a radius passing through the middle section will pass through the reduced portion of each of the compartments.
Claim 3
Dependent Claim
17 words
Inflatable resting cushion according to claim 1, wherein said curve shaped defining line substantially forms an S-shape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-23 | 1983-01-22 | 1983-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-23 | 1987-01-22 | 1987-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-23 | 1991-01-22 | 1991-07-24 | $7700.00 | Window Closed / Lapsed |