US4241477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper clip
Assignee: Individual
•
Filing: 1979-08-16
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Granted: 1980-12-30
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Expires: 1999-08-16
Abstract
Abstract There is disclosed an improved paper clip for retaining two or more pieces of paper together formed by a continuous U-shaped body having an upper wall and a lower wall being spaced apart a distance and joined at one end by a junction portion, the upper wall having a cut-out portion formed therein and having one surface thereof including an inclined surface formed therein, spring means mounted on the upper wall and recessed within the cut-out portion the spring means further including an inclined section formed integrally therewith and positioned in cooperating relation with the inclined surface of the cut-out portion such that the inclined section frictionally engages against the inclined surface, the spring means including paper piercing means formed thereon and extending downwardly therefrom in the direction of the lower wall, the spring means constructed to have an open position when retracted and a closed position when depressed, the lower wall having a receiving slot formed therein and positioned in linear alignment with the paper piercing means such that when the spring means is depressed, the paper piercing means will pierce the two or more pieces of paper inserted within the space between the upper and lower wall until the paper piercing means is received in the receiving slot.
Inventors
- 👤 John Freedom
- 👤 Thomas Freedom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:22
CPC Classifications
B; B42; B42F; B42F3/00; B42F1/00; B42F1/02; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/205; Y10T24/209
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
355 words
An improved paper clip for retaining at least two individual pieces of paper, together, comprising in combination a continuous U-shaped body having an upper wall and a lower wall spaced apart a distance and joined at one end by a junction portion, said upper wall having a cut-out portion formed therein, said cut-out portion having one surface thereof having an inclined surface formed therein, spring means mounted on said upper wall and recessed within said cut-out portion, said spring means further including an inclined section formed integrally therewith and positioned in cooperating relation with said inclined surface of said cut-out portion such that said inclined section frictionally engages said inclined surface, said spring means including paper piercing means formed thereon and extending downwardly therefrom in the direction of said lower wall, said spring means constructed to have an open position when retracted with said paper piercing means raised upwardly into said cut out portion, and a closed position when said spring means with said paper piercing means depressed downwardly such that said paper piercing means extends across the open space between said upper and lower walls respectively, said lower wall having a receiving slot formed therein and positioned in linear alignment with said paper piercing means when in the depressed and closed position, said receiving slot being dimensionally sized to frictionally receive said paper piercing means when inserted therein, whereby said paper clip may be operated to retain two or more pieces of paper together by simply inserting said pieces of paper into the open space between said upper wall and lower wall, and depressing said spring means such that said paper piercing means extends across said open space between said upper and lower wall, through the pieces of paper positioned therein, until said paper piercing means is received in said receiving slot and frictionally engaged therein, and the paper clip being designed to be removable by simply retracting said spring means into an upper open position thereby to remove said paper piercing means from engaging relationship with the pieces of paper positioned in the open space between said upper wall and lower wall respectively.
Claim 2
Dependent Claim
355 words
An improved paper clip for retaining at least two individual pieces of paper, together, comprising in combination a continuous U-shaped body having an upper wall and a lower wall spaced apart a distance and joined at one end by a junction portion, said upper wall having a cut-out portion formed therein, said cut-out portion having one surface thereof having an inclined surface formed therein, spring means mounted on said upper wall and recessed within said cut-out portion, said spring means further including an inclined section formed integrally therewith and positioned in cooperating relation with said inclined surface of said cut-out portion such that said inclined section frictionally engages said inclined surface, said spring means including paper piercing means formed thereon and extending downwardly therefrom in the direction of said lower wall, said spring means constructed to have an open position when retracted with said paper piercing means raised upwardly into said cut out portion, and a closed position when said spring means with said paper piercing means depressed downwardly such that said paper piercing means extends across the open space between said upper and lower walls respectively, said lower wall having a receiving slot formed therein and positioned in linear alignment with said paper piercing means when in the depressed and closed position, said receiving slot being dimensionally sized to frictionally receive said paper piercing means when inserted therein, whereby said paper clip may be operated to retain two or more pieces of paper together by simply inserting said pieces of paper into the open space between said upper wall and lower wall, and depressing said spring means such that said paper piercing means extends across said open space between said upper and lower wall, through the pieces of paper positioned therein, until said paper piercing means is received in said receiving slot and frictionally engaged therein, and the paper clip being designed to be removable by simply retracting said spring means into an upper open position thereby to remove said paper piercing means from engaging relationship with the pieces of paper positioned in the open space between said upper wall and lower wall respectively.
Claim 3
Dependent Claim
125 words
The improved paper clip as set forth in claim 1 above, wherein said spring means comprises a spring clip form by a mounting end mounted on said upper wall, an extension arm extending outwardly from said mounting end into said cut-out portion and terminating adjacent to said inclined surface of said cut-out portion, and inclined section mounted on and extending upwardly from said extension arm and positioned adjacent to and in frictional contact with said inclined surface, a handle section mounted on and extending horizontally from said inclined section to accommodate the manipulation of said spring means by the user thereof, and paper piercing means carried on said extension arm and extending downwardly therefrom in the area forming said cut-out portion of said upper wall.
Claim 4
Dependent Claim
34 words
The improved paper clip as set forth in claim 2 above, wherein said spring means including said mounting end, extension arm, inclined section, handle and paper piercing means is formed as a unitary element.
Claim 5
Dependent Claim
40 words
The improved paper clip as set forth in claim 2 above, wherein said spring means is mounted on said upper wall by being carried within the confines of said upper wall between said cut out portion and said junction portion.
Claim 6
Dependent Claim
40 words
The improved paper clip as set forth in claim 2 above, wherein said paper piercing means is formed as a conical pin extending downwardly from said extension arm into the confines forming said cut out portion of said upper wall.
Claim 7
Dependent Claim
66 words
The improved paper clip as set forth in claim 5 above, wherein said receiving slot is formed as a conical slot in linear alignment with said conical pin thereby to frictionally receive and engage said conical pin when said spring means is depressed downwardly such that said conical pin extends through the open portion between said upper wall and lower wall, and into said receiving slot.
Claim 8
Dependent Claim
85 words
The improved paper clip as set forth in claim 2 above, wherein said paper piercing means comprises a bifurcated conical pin having a circular slot formed therein adjacent to terminal end thereof, and said receiving slot formed in said lower wall as formed as a conical recess having a circular nib formed therein, such that said circular nib engages in said circular slot when said bifurcated pin is depressed within the confines of said conical recess thereby to retain said pin in a closed position.
Claim 9
Dependent Claim
44 words
The improved paper clip as set forth in claim 1 above, wherein said U-shaped body is formed as an entire unitary element, and said spring means is formed as a second unitary element, and said spring means is fixedly secured to said U-shaped body.
Claim 10
Dependent Claim
27 words
The improved paper clip as set forth in claim 1 above, wherein said U shaped body in said spring means are formed intervally as a unitary element.
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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) | 1983-12-30 | 1984-06-30 | 1984-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-30 | 1988-06-30 | 1988-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-30 | 1992-06-30 | 1992-12-30 | $7700.00 | Window Closed / Lapsed |