Patent US4072486A successfully refreshed from Google Patents.
US4072486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
See-through, smoked gray, plexiglass refrigerator door
Assignee: Individual
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Filing: 1976-11-03
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Granted: 1978-02-07
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Expires: 1996-11-03
Abstract
Abstract A refrigerator is disclosed having a door on its front side and which is made of transparent, smoked gray Plexiglass so that a person can see through the door and into the interior of the refrigerator, thus being able to seek for an item of food before opening the door so to conserve electrical energy, and the outer side of the door having a switch button to turn on the light inside the refrigerator while the door is closed so to illuminate the interior.
Inventors
- 👤 Ruth Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:07
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/02; A; A47; A47F; A47F3/00; A47F3/04; A47F3/0404; A47F3/0426; A47F3/043; F25D27/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A household refrigerator including a case having a cooler compartment and a freezer compartment cooled by a refrigerating mechanism, and a front door of said refrigerator being made from a transparent Plexiglass material that is tinted smoke gray so that visibility therethrough is not readily clear from an outside when an interior of said refrigerator is not illuminated; said door including a sealed, central, air space insulation between inner and outer wall thereof; said door being mounted upon hinges and including a pull handle, a magnet-impregnated gasket mounted on an inner side of said door for abuttment with a metal front face of said refrigerator case; a lamp inside said case being in a circuit with a first switch automatically operated when said door is opened and is also in a circuit with a second switch manually operated by a pushbutton on an outer side of said door, said lamp providing illumination means inside said refrigerator so to allow clear visibility readily through said transparent, smoke gray Plexiglass door.
Claim 2
Dependent Claim
169 words
A household refrigerator including a case having a cooler compartment and a freezer compartment cooled by a refrigerating mechanism, and a front door of said refrigerator being made from a transparent Plexiglass material that is tinted smoke gray so that visibility therethrough is not readily clear from an outside when an interior of said refrigerator is not illuminated; said door including a sealed, central, air space insulation between inner and outer wall thereof; said door being mounted upon hinges and including a pull handle, a magnet-impregnated gasket mounted on an inner side of said door for abuttment with a metal front face of said refrigerator case; a lamp inside said case being in a circuit with a first switch automatically operated when said door is opened and is also in a circuit with a second switch manually operated by a pushbutton on an outer side of said door, said lamp providing illumination means inside said refrigerator so to allow clear visibility readily through said transparent, smoke gray Plexiglass door.
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) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |