US3924284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermo-cloud electric mattress
Assignee: Individual
•
Filing: 1974-06-17
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Granted: 1975-12-09
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Expires: 1994-06-17
Abstract
Abstract A bed mattress comprised generally of a termostatically controlled heating element interposed between upper and lower protective pads, insulating means beneath the lower protective pad including means to radiate the heat upwardly, a relatively thick foam rubber pad disposed above the upper protective pad, a wool pad positioned above the foam rubber pad and a fabric cover disposed about the entire assembly to provide in effect a ThermoCloud Mattress.
Inventors
- 👤 Alvin M Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:04
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/04; A47C21/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
An electric bed mattress comprising: a thermostatically controlled heating element interposed between upper and lower protective pads, fabricated of cotton; insulating means disposed beneath said lower protective pad; a relatively thick resilient pad formed of foam rubber positioned above said upper protective pad; a fabric cover of a material such as rayon-damask fixed about the entire exterior of the mattress assembly; a relatively thin wool pad interposed between the top surface of said resilient pad and the underside of the top portion of said fabric cover; said insulating means comprising an insulated paper structure covered with foil on its top side to radiate the heat from said heating element upwardly through the mattress.
Claim 2
Dependent Claim
113 words
An electric bed mattress comprising: a thermostatically controlled heating element interposed between upper and lower protective pads, fabricated of cotton; insulating means disposed beneath said lower protective pad; a relatively thick resilient pad formed of foam rubber positioned above said upper protective pad; a fabric cover of a material such as rayon-damask fixed about the entire exterior of the mattress assembly; a relatively thin wool pad interposed between the top surface of said resilient pad and the underside of the top portion of said fabric cover; said insulating means comprising an insulated paper structure covered with foil on its top side to radiate the heat from said heating element upwardly through the mattress.
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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |