US3900156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner pad
Assignee: CLARK BETTY EMERY
•
Filing: 1974-05-16
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Granted: 1975-08-19
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Expires: 1994-05-16
Abstract
Abstract A corner pad or protective shield for use on the corners of articles during shipment is illustrated substantially in the form of a pyramid having an open base for accommodating the corner and being constructed from a flat blank of fluted cardboard provided with slit scores to facilitate shipment of the corner pads in flat, stacked relation to be folded by the user into the aforesaid pyramid.
Inventors
- 👤 Jr Alexander B Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:35
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/05; B65D81/053; B65D81/055; B65D81/056; B65D5/00; B65D5/42; B65D5/44; B65D5/50; B65D5/5028; B65D5/5033; B65D2581/00; B65D2581/02; B65D2581/05; B65D2581/051; B65D2581/052; B65D2581/053
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
251 words
A protective shield for use on corners of articles during shipment comprising: a flat, fluted cardboard blank; an intermediate substantially triangular portion of said blank bounded on each side and the base on the underside thereof by slit scores; an intermediate slit score on the underside of said intermediate portion extending from adjacent the apex to substantially the mid point of the base of said intermediate triangular portion; a first pair of triangular flaps, each carried by a first mentioned slit score at each side of said intermediate portion; a second pair of triangular flaps, each carried by the other first mentioned slit score at said base each extending substantially to the mid-point thereof, each flap presenting a free side extending from said base; a third pair of triangular flaps, each carried by a slit score and foldable in superposed relation to an adjacent one of said second pair of flaps; a first tab projecting outward from one of said free sides and a first notch carried by the other of said free sides complimentary to said first tab for receiving same; and a second tab projecting outward from one of said third pair of flaps and a second notch carried by the other of said third pair of flaps complimentary to said second tab for receiving same; whereby said tabs join said free sides when said first pair of flaps are folded inwardly to overlay said intermediate portion and said second and third pairs of triangular flaps folded into engagement.
Claim 2
Dependent Claim
251 words
A protective shield for use on corners of articles during shipment comprising: a flat, fluted cardboard blank; an intermediate substantially triangular portion of said blank bounded on each side and the base on the underside thereof by slit scores; an intermediate slit score on the underside of said intermediate portion extending from adjacent the apex to substantially the mid point of the base of said intermediate triangular portion; a first pair of triangular flaps, each carried by a first mentioned slit score at each side of said intermediate portion; a second pair of triangular flaps, each carried by the other first mentioned slit score at said base each extending substantially to the mid-point thereof, each flap presenting a free side extending from said base; a third pair of triangular flaps, each carried by a slit score and foldable in superposed relation to an adjacent one of said second pair of flaps; a first tab projecting outward from one of said free sides and a first notch carried by the other of said free sides complimentary to said first tab for receiving same; and a second tab projecting outward from one of said third pair of flaps and a second notch carried by the other of said third pair of flaps complimentary to said second tab for receiving same; whereby said tabs join said free sides when said first pair of flaps are folded inwardly to overlay said intermediate portion and said second and third pairs of triangular flaps folded into engagement.
Claim 3
Dependent Claim
14 words
The structure set forth in claim 1 wherein said blank is double wall cardboard.
Claim 4
Dependent Claim
29 words
The structure set forth in claim 1 wherein said third pair of flaps is carried by said free sides by means of a slit score along each free side.
Claim 5
Dependent Claim
21 words
The structure set forth in claim 1 wherein said third pair of flaps is carried by said first pair of flaps.
Claim 6
Dependent Claim
67 words
The structure set forth in claim 1 wherein said second pair of flaps has a slit score extending from adjacent said mid-point of the base of said equilateral triangle to a mid-point of the base of each of said second flaps forming said third pair of flaps, whereby a pyramid having an open base is formed and each side thereof has a double thickness of fluted cardboard.
References Cited (Backward Citations)
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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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |