Patent US4893365A successfully refreshed from Google Patents.
US4893365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable king-sized mattress
Assignee: Individual
•
Filing: 1989-05-22
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Granted: 1990-01-16
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Expires: 2009-05-22
Abstract
Abstract The problem of a split between two mattresses is eliminated by giving each person on a king-sized bed the capability for adjusting the head and/or foot portion of the mattress to any position, without disturbing the bed partner. A serpentine "S" design is provided to separate the head and foot portions of a single mattress at a distance extending over approximately two feet from the headboard toward the foot of the bed and extending over approximately two feet from the foot of the bed toward the headboard. There is approximately three to four feet of the mattress in a central portion without any separation where most of the body's weight is concentrated and which provides support and comfort for two people in a single king-sized mattress having adjustable head and foot portions.
Inventors
- 👤 Donald R. Justice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:38
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/04; A47C27/00; A47C27/001
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
138 words
A mattress comprising: a head end, a foot end, and a central portion located between said head end and said foot end, said head end including a centrally-located head end separation for dividing said head end into two head portions, said head end separation extending from said head end towards said foot end and terminating at said central portion, said separation extending in a serpentine pattern to form a series of complementary-shaped crests and valleys on said two head portions, said foot end including a centrally-located foot end separation for dividing said foot end into two foot portions, said foot end separation extending from said foot end towards said head end and terminating at said central portion, said separation extending in a serpentine pattern to form a series of complementary-shaped crests and valleys on said two foot portions.
Claim 2
Dependent Claim
138 words
A mattress comprising: a head end, a foot end, and a central portion located between said head end and said foot end, said head end including a centrally-located head end separation for dividing said head end into two head portions, said head end separation extending from said head end towards said foot end and terminating at said central portion, said separation extending in a serpentine pattern to form a series of complementary-shaped crests and valleys on said two head portions, said foot end including a centrally-located foot end separation for dividing said foot end into two foot portions, said foot end separation extending from said foot end towards said head end and terminating at said central portion, said separation extending in a serpentine pattern to form a series of complementary-shaped crests and valleys on said two foot portions.
Claim 3
Dependent Claim
14 words
A mattress as claimed in claim 1, wherein the mattress is a king-sized mattress.
Claim 4
Dependent Claim
18 words
A mattress as claimed in claim 1, wherein said two head portions are elevatable independently of one another.
Claim 5
Dependent Claim
18 words
A mattress as claimed in claim 1, wherein said two foot portions are elevatable independently of one another.
Claim 6
Dependent Claim
151 words
A bed comprising: a bed frame, a mattress located on said bed frame, said mattress including a head end, a foot end and a central portion located between said head end and said foot end, said head end including a centrally-located head end separation for dividing said head end into two head portions, said head end separation extending from said head end towards said foot end and terminating at said central portion, said separation extending in a serpentine pattern to form a series of complementary-shaped crests and valleys on said two head portions, said foot end including a centrally-located foot end separation for dividing said foot end into two foot portions, said foot end separation extending from said foot end towards said head end and terminating at said central portion, said separation extending in a serpentine pattern to form a series of complementary-shaped crests and valleys on said two foot portions.
Claim 7
Dependent Claim
151 words
A bed comprising: a bed frame, a mattress located on said bed frame, said mattress including a head end, a foot end and a central portion located between said head end and said foot end, said head end including a centrally-located head end separation for dividing said head end into two head portions, said head end separation extending from said head end towards said foot end and terminating at said central portion, said separation extending in a serpentine pattern to form a series of complementary-shaped crests and valleys on said two head portions, said foot end including a centrally-located foot end separation for dividing said foot end into two foot portions, said foot end separation extending from said foot end towards said head end and terminating at said central portion, said separation extending in a serpentine pattern to form a series of complementary-shaped crests and valleys on said two foot portions.
Claim 8
Dependent Claim
36 words
A bed assembly as claimed in claim 5, wherein said bed frame includes adjustment means for elevating said two head portions independently of each other and for elevating said two foot portions independently of each other.
Claim 9
Dependent Claim
84 words
A bed assembly as claimed in claim 6, wherein said adjustment means for said two head portions includes an adjustment assembly for each of said two head portions, said adjustment assembly for each of said two head portions being spaced from each other to form a gap therebetween so that when one adjustment assembly elevates one head portion, said one adjustment assembly lifts only said one head portion and said one head portion thereby clears the crests and valleys of said other head portion.
References Cited (Backward Citations)
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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) | 1993-01-15 | 1993-07-17 | 1994-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-15 | 1997-07-17 | 1998-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-15 | 2001-07-17 | 2002-01-16 | $7700.00 | Window Closed / Lapsed |