Patent US4985952A successfully refreshed from Google Patents.
US4985952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexibly hinged convertible mattress
Assignee: Individual
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Filing: 1990-05-23
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Granted: 1991-01-22
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Expires: 2010-05-23
Abstract
Abstract Four rectangular cushion sections are flexibly interconnected along certain of their top and bottom edges by three hinges. The resulting mattress-like article may be variously folded and unfolded to function as a bed, exercise mat, day couch, or ottoman, and can also be compactly stored.
Inventors
- 👤 Nathan Edelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:21
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/001
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
116 words
A flexibly hinged convertible mattress or other device comprising four approximately rectangular sections of approximately uniform dimensions wherein said first section is flexibly connected to said second section, and said third section is flexibly connected to said fourth section, said flexible connections being made along one like-length top edge of each said section; and also wherein said second section is flexibly connected to said third section, said connection being made along one like-length bottom edge of each of said second and third sections, said flexibly-connected bottom edges being at right angles to said flexibly-connected top-edges, whereby said mattress or other device may be easily and variously folded and unfolded to permit diverse uses and compact storage.
Claim 2
Dependent Claim
116 words
A flexibly hinged convertible mattress or other device comprising four approximately rectangular sections of approximately uniform dimensions wherein said first section is flexibly connected to said second section, and said third section is flexibly connected to said fourth section, said flexible connections being made along one like-length top edge of each said section; and also wherein said second section is flexibly connected to said third section, said connection being made along one like-length bottom edge of each of said second and third sections, said flexibly-connected bottom edges being at right angles to said flexibly-connected top-edges, whereby said mattress or other device may be easily and variously folded and unfolded to permit diverse uses and compact storage.
Claim 3
Dependent Claim
11 words
The item of claim 1 wherein the sections are fabric-covered foam.
Claim 4
Dependent Claim
12 words
The item of claim 2 wherein the foam is closed cell foam.
Claim 5
Dependent Claim
11 words
The item of claim 3 where the hinges are fabric hinges.
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) | 1994-01-21 | 1994-07-23 | 1995-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-21 | 1998-07-23 | 1999-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-21 | 2002-07-23 | 2003-01-22 | $7700.00 | Window Closed / Lapsed |