US3736006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope
Assignee: Individual
•
Filing: 1971-06-16
•
Granted: 1973-05-29
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Expires: 1991-06-16
Abstract
Abstract An envelope, and a unitary blank for making the same, having a rectangular panel joined to another panel at one end by a connecting strip and having a slit at the other end is disclosed. The connecting strip is folded where it joins the rectangular panel and the rectangular panel is then folded transversely along a line slightly offset from the transverse axis. A pair of tabs formed by the slot are then folded over to seal the envelope. The connecting strip is extended into the rectangular panel by perforations which can be torn thereby allowing the user to pull the strip and second panel outwardly thereby exposing hidden writing through a window provided in the rectangular panel.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:27
CPC Classifications
B; B42; B42D; B42D15/00; B42D15/02; B42D15/04; B42D15/08; Y; Y10; Y10S; Y10S283/00; Y10S283/903
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
284 words
An envelope fabricated from a unitary blank comprising: a. a first rectangular panel having a pair of parallel opposed side edges, a first end, a second End, a longitudinal axis and a transverse axis; b. a second panel having parallel opposed first and second edges; c. a connecting strip joining said second panel by said first edge to said first panel at said first end and centered about said longitudinal axis; and d. a notch at said second end, centered about said longitudinal axis and substantially equal in width to said connecting strip, thereby forming a pair of equal tabs at said second end, and a first fold line at the base of said pair of equal tabs; e. said first panel further having a pair of parallel rows of perforations extending inwardly from said first end, equally spaced from, and parallel to, said longitudinal axis, and spaced apart a distance substantially equal to the width of said connecting strip, and a die-cut slit joining said rows of perforations; f. said connecting strip being folded along said first end; g. said first panel being folded along a second fold line and adhesively joined at said side edges, to thereby superimpose said first and second ends and enclose said connecting strip and said second panel; h. said tabs being folded along said first fold line to overlie said first end and adhesively joined to said first end, with said pair of rows of perforations lying between said tabs, whereby said connecting strip can be separated from said first panel by breaking said die-cut slit and said perforations and pulled outwardly until stopped by said tabs, thereby exposing writing or other indicia on said second panel.
Claim 2
Dependent Claim
284 words
An envelope fabricated from a unitary blank comprising: a. a first rectangular panel having a pair of parallel opposed side edges, a first end, a second End, a longitudinal axis and a transverse axis; b. a second panel having parallel opposed first and second edges; c. a connecting strip joining said second panel by said first edge to said first panel at said first end and centered about said longitudinal axis; and d. a notch at said second end, centered about said longitudinal axis and substantially equal in width to said connecting strip, thereby forming a pair of equal tabs at said second end, and a first fold line at the base of said pair of equal tabs; e. said first panel further having a pair of parallel rows of perforations extending inwardly from said first end, equally spaced from, and parallel to, said longitudinal axis, and spaced apart a distance substantially equal to the width of said connecting strip, and a die-cut slit joining said rows of perforations; f. said connecting strip being folded along said first end; g. said first panel being folded along a second fold line and adhesively joined at said side edges, to thereby superimpose said first and second ends and enclose said connecting strip and said second panel; h. said tabs being folded along said first fold line to overlie said first end and adhesively joined to said first end, with said pair of rows of perforations lying between said tabs, whereby said connecting strip can be separated from said first panel by breaking said die-cut slit and said perforations and pulled outwardly until stopped by said tabs, thereby exposing writing or other indicia on said second panel.
Claim 3
Dependent Claim
25 words
An envelope according to claim 1, further comprising at least one aperture forming a window in said first panel, through which said indicia are observed.
Claim 4
Dependent Claim
11 words
An envelope according to claim 2, comprising a plurality of windows.
Claim 5
Dependent Claim
23 words
An envelope according to claim 1, wherein said indicia are exposed through the opening resulting from said strip being removed at said perforations.
Claim 6
Dependent Claim
220 words
A unitary blank for an envelope comprising: a large first panel having an end adapted to become one end of the envelope, fold lines and adhesive portions along said first panel whereby a complete envelope may be formed from said first panel; a relatively small second panel spaced from said end of said first panel; a connecting strip joining said second panel to said end of said first panel, said connecting strip having a fold line at the junction with said first panel; said fold lines and adhesive portions along said first panel including tab means for sealing said one end of the envelope adjacent said connecting strip without interfering with said connecting strip; said first panel further having a pair of rows of perforations extending inwardly from said end and forming an extension of said connecting strip, and a slit joining said rows of perforations; whereby said connecting strip may be folded along said fold line at the junction therewith with said first panel so that said connecting strip and said second panel overlie said first panel, and said first panel may be folded to form the envelope about said connecting strip and said second panel, and upon tearing along said perforations said second panel may be moved within the envelope using the now detached strip as a handle.
Claim 7
Dependent Claim
220 words
A unitary blank for an envelope comprising: a large first panel having an end adapted to become one end of the envelope, fold lines and adhesive portions along said first panel whereby a complete envelope may be formed from said first panel; a relatively small second panel spaced from said end of said first panel; a connecting strip joining said second panel to said end of said first panel, said connecting strip having a fold line at the junction with said first panel; said fold lines and adhesive portions along said first panel including tab means for sealing said one end of the envelope adjacent said connecting strip without interfering with said connecting strip; said first panel further having a pair of rows of perforations extending inwardly from said end and forming an extension of said connecting strip, and a slit joining said rows of perforations; whereby said connecting strip may be folded along said fold line at the junction therewith with said first panel so that said connecting strip and said second panel overlie said first panel, and said first panel may be folded to form the envelope about said connecting strip and said second panel, and upon tearing along said perforations said second panel may be moved within the envelope using the now detached strip as a handle.
Claim 8
Dependent Claim
38 words
A unitary blank for an envelope in accordance with claim 5 wherein said tab means comprise a pair of tabs forming a notch therebetween, the width of said notch being approximately equal the width of said connecting strip.
Claim 9
Dependent Claim
111 words
An envelope fabricated from the unitary blank of claim 5: said large first panel being folded along said fold lines of said large first panel and adhesively sealed along said adhesive portions to form a complete envelope, with said connecting strip and said relatively small second panel lying within said complete envelope, said tab means being folded and sealed adjacent said connecting strip with said pair of rows of perforations lying between said tabs; whereby said connecting strip can be separated from said first panel by breaking said die-cut slit and said perforations and pulled outwardly until stopped by said tabs, thereby exposing writing or other indicia on said second panel.
Claim 10
Dependent Claim
20 words
A unitary blank according to claim 5, further including at least one aperture forming a window in said first panel.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |