US3653735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded drawer guides
Assignee: ELCO KUNSTSTOFFE A ELGES AND CO
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Filing: 1969-09-26
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Granted: 1972-04-04
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Expires: 1989-09-26
Abstract
Abstract Furniture drawers produced by injection molding are provided with various edge guides and combinations thereof for greater rigidity and smoother operation.
Inventors
- 👤 Hans-Werner Duepree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:42
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/40; A47B88/483; A47B88/417; A47B2210/00; A47B2210/0002; A47B2210/0051; A47B2210/0059
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
139 words
In a drawer formable of a suitable plastic material by injection molding having a front wall, a rear wall and a pair of parallel sidewalls connected to said front and rear walls, said sidewalls each having an outer side as well as a front end and a rear end and comprising: each of the sidewalls having an upper and a lower guide on its outer side each parallel to the other and each extending substantially from the front end to the rear end of its respective sidewall, each of the upper guides having an under face and each of the lower guides having an upper face, each of the sidewalls having a plurality of inclined bracing ribs extending respectively between the under face of the upper guide of that sidewall and the upper face of the lower guide thereof.
Claim 2
Dependent Claim
139 words
In a drawer formable of a suitable plastic material by injection molding having a front wall, a rear wall and a pair of parallel sidewalls connected to said front and rear walls, said sidewalls each having an outer side as well as a front end and a rear end and comprising: each of the sidewalls having an upper and a lower guide on its outer side each parallel to the other and each extending substantially from the front end to the rear end of its respective sidewall, each of the upper guides having an under face and each of the lower guides having an upper face, each of the sidewalls having a plurality of inclined bracing ribs extending respectively between the under face of the upper guide of that sidewall and the upper face of the lower guide thereof.
Claim 3
Dependent Claim
41 words
In a drawer according to claim 1 each of the sidewalls having an intermediate guide positioned respectively between the upper and the lower guide of that sidewall, each of the intermediate guides intersected respectively by the bracing ribs of its sidewall.
Claim 4
Dependent Claim
26 words
In a drawer according to claim 1, the bracing ribs of each sidewall extending generally sinusoidally between the under and the upper faces of that sidewall.
Claim 5
Dependent Claim
53 words
In the drawer according to claim 3 each of the sidewalls having two sets of bracing ribs offset one-half cycle with respect to one another so that the respective sets of bracing ribs of each of the sidewalls engage the under and upper faces of that sidewall vertically above and below one another.
References Cited (Backward Citations)
CA815935A
Cited
US1301495A
Cited
US2418244A
Cited
US2701174A
Cited
US3160448A
Cited
US3315834A
Cited
GB1085624A
Cited
US3462208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |