US3597038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steel drawer
Assignee: ITHOKI KOSAKUSHO KK
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Filing: 1969-09-23
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Granted: 1971-08-03
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Expires: 1989-09-23
Abstract
Abstract A front and a rear panel board constituting a front wall of a drawer having a backwardly and a forwardly bent flange on their edges, each of which flanges in turn has an inwardly or outwardly extending L-shaped flange. The L-shaped flanges on both lateral flanges of the rear panel board are cut off at their upper portions and the lower flanges are also cut off at their extreme ends. With the front and rear panel boards thus constructed, they are firmly secured to each other at their upper and lateral sides of the panel boards.
Inventors
- 👤 Kokichi Kunishima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:58
CPC Classifications
A; A47; A47B; A47B95/00; A47B95/02; A47B88/00; A47B88/90; A47B88/944; A47B88/95
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
257 words
A steel drawer comprising a front wall made up of a front and a rear panel board, sidewalls and a bottom wall, said rear panel board having a forwardly bent first flange on the upper and right and left sides thereof, each said first flange having an outwardly extending second flange at the front end thereof, said second flange having a forwardly bent third flange at the outer end thereof, said second flange and said third flange on both lateral sides of the rear panel board 1 being cut out at their upper portions said rear panel board being provided with a forwardly bent flange at the lower edge thereof, said sidewalls and bottom wall being attached to the rear face of said rear panel board; said front panel board having a forwardly bent first flange on the upper and lower and both lateral sides thereof, each first flange having an inwardly extending second flange at the rear end thereof, the second flange on the lower side having a backwardly bent third flange, said flanges on the lower side being cut out at their extreme ends; whereby said first and second flanges of the upper and the lateral sides of the front panel board engage with the second and third flanges of the upper and the lateral sides of the rear panel board when the former are combined with the latter, and said third flange on the lower side of the front panel board engages with said flange at the lower end of the rear panel board.
Claim 2
Dependent Claim
257 words
A steel drawer comprising a front wall made up of a front and a rear panel board, sidewalls and a bottom wall, said rear panel board having a forwardly bent first flange on the upper and right and left sides thereof, each said first flange having an outwardly extending second flange at the front end thereof, said second flange having a forwardly bent third flange at the outer end thereof, said second flange and said third flange on both lateral sides of the rear panel board 1 being cut out at their upper portions said rear panel board being provided with a forwardly bent flange at the lower edge thereof, said sidewalls and bottom wall being attached to the rear face of said rear panel board; said front panel board having a forwardly bent first flange on the upper and lower and both lateral sides thereof, each first flange having an inwardly extending second flange at the rear end thereof, the second flange on the lower side having a backwardly bent third flange, said flanges on the lower side being cut out at their extreme ends; whereby said first and second flanges of the upper and the lateral sides of the front panel board engage with the second and third flanges of the upper and the lateral sides of the rear panel board when the former are combined with the latter, and said third flange on the lower side of the front panel board engages with said flange at the lower end of the rear panel board.
Claim 3
Dependent Claim
59 words
A steel drawer according to claim 1 wherein the third flange on the lower side of the front panel board has an opening therein and the flange on the lower edge of said rear panel board has a projection thereon, said projection being adapted to fit into said opening when the front and back panel boards are assembled together.
References Cited (Backward Citations)
US2968519A
Cited
US3416850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |