US4281425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neonatal flotation pad
Assignee: Individual
•
Filing: 1979-08-06
•
Granted: 1981-08-04
•
Expires: 1999-08-06
Abstract
Abstract A flotation mattress pad for an incubator or open warmer has a plurality of separate transverse sections filled with a heat-retentive, viscous fluid. The center sections of the pad have a slightly greater thickness than the end sections. Each section overlaps the adjacent sections to provide relatively constant thickness when the pad is tilted.
Inventors
- 👤 Annella E. Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:17
CPC Classifications
A; A47; A47D; A47D15/00; A47D15/001; A47C; A47C27/00; A47C27/08; A47C27/085; A61; A61G; A61G11/00; A61G2210/00; A61G2210/90
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
A flotation pad for premature infants comprises a unitary liquid-impermeable, flexible bladder having a plurality of adjacent separate fluid-containing sealed transverse compartments, wherein each compartment is in overlapping relationship with the next adjacent compartment in the amount of at least 10% of the length of each compartment, such that when the pad is tilted, the thickness thereof remains relatively uniform.
Claim 2
Dependent Claim
60 words
A flotation pad for premature infants comprises a unitary liquid-impermeable, flexible bladder having a plurality of adjacent separate fluid-containing sealed transverse compartments, wherein each compartment is in overlapping relationship with the next adjacent compartment in the amount of at least 10% of the length of each compartment, such that when the pad is tilted, the thickness thereof remains relatively uniform.
Claim 3
Dependent Claim
24 words
The pad of claim 1 wherein the thickness of the center compartments of the pad is greater than the thickness of the end compartments.
Claim 4
Dependent Claim
24 words
The pad of claim 2 wherein the thickness of the center compartments is at least 10% greater than the thickness of the end compartments.
Claim 5
Dependent Claim
19 words
The pad of claim 2 wherein the thicker compartments extend at least 50% of the length of the pad.
Claim 6
Dependent Claim
13 words
The pad of claim 1 wherein the bladder contains at least four compartments.
Claim 7
Dependent Claim
24 words
The pad of claim 1 also comprising in combination therewith a soft, structural pad support having a flat base portion and raised end portions.
Claim 8
Dependent Claim
20 words
The pad of claim 1 wherein the fluid contained in the compartments is a viscous, water based, heat retentive fluid.
Claim 9
Dependent Claim
21 words
The pad of claim 1 wherein the fluid contained within the compartments is a gel comprising water, starch, borax, and paraformaldehyde.
Claim 10
Dependent Claim
112 words
A flotation pad for premature infants comprises a unitary, liquid-impermeable, flexible bladder having a plurality of adjacent separate fluid-containing sealed transverse compartments wherein each compartment is in overlapping relationship with the next adjacent compartment in the amount of at least 10% of the length of each compartment, such that when the pad is tilted, the thickness thereof remains relatively uniform, and wherein the thickness of center compartments is at least 10% greater than the thickness of end compartments, said thicker compartments extending at least 50% of the length of the pad, said pad comprising in combination therewith a soft, structural pad support having a flat base portion and a raised end portion.
Claim 11
Dependent Claim
112 words
A flotation pad for premature infants comprises a unitary, liquid-impermeable, flexible bladder having a plurality of adjacent separate fluid-containing sealed transverse compartments wherein each compartment is in overlapping relationship with the next adjacent compartment in the amount of at least 10% of the length of each compartment, such that when the pad is tilted, the thickness thereof remains relatively uniform, and wherein the thickness of center compartments is at least 10% greater than the thickness of end compartments, said thicker compartments extending at least 50% of the length of the pad, said pad comprising in combination therewith a soft, structural pad support having a flat base portion and a raised end portion.
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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) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |