Patent US4730767A successfully refreshed from Google Patents.
US4730767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Letter sheet with return envelope
Assignee: WESTVACO CORORATION A CORP OF DE
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Filing: 1986-04-30
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Granted: 1988-03-15
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Expires: 2006-04-30
Abstract
Abstract A personalized envelope assembly including a return envelope is formed from two separate pieces of material comprising an outer blank for forming a letter sheet or the like and a patch which is adhered to the blank to form the rear panel of the return envelope. The letter sheet blank is prepared in web form and the patch is applied to the blank using window applying equipment or the like. The letter sheet blank further includes one or more coupon elements integral therewith and detachable therefrom for return mail.
Inventors
- 👤 Wilfred H. Gendron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:24
CPC Classifications
B; B65; B65D; B65D27/00; B65D27/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
138 words
An envelope assembly prepared from two separate blanks of envelope material comprising a first blank of envelope material having inner and outer surfaces which is cut and scored to provide a first mailing piece consisting of four interconnected elements, said elements including front and rear panels, a first closure flap and an integral return coupon, and a second blank of envelope material having four edges that is adhered along at least three of its edges to the inner surface of the rear panel of said first blank to form an enclosed pocket between the second blank and the rear panel for return mailing, said coupon being attached to one edge of said rear panel along a first perforated line and said front panel being attached to an opposite edge of said rear panel along a second perforated line.
Claim 2
Dependent Claim
138 words
An envelope assembly prepared from two separate blanks of envelope material comprising a first blank of envelope material having inner and outer surfaces which is cut and scored to provide a first mailing piece consisting of four interconnected elements, said elements including front and rear panels, a first closure flap and an integral return coupon, and a second blank of envelope material having four edges that is adhered along at least three of its edges to the inner surface of the rear panel of said first blank to form an enclosed pocket between the second blank and the rear panel for return mailing, said coupon being attached to one edge of said rear panel along a first perforated line and said front panel being attached to an opposite edge of said rear panel along a second perforated line.
Claim 3
Dependent Claim
33 words
The envelope assembly of claim 1 wherein said rear panel includes a fold line adjacent to and parallel to said second perforated line offset slightly from the unadhered edge of said second blank.
Claim 4
Dependent Claim
28 words
The envelope assembly of claim 2 wherein a line of adhesive is applied to the return panel between said second perforated line and the fold line adjacent thereto.
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) | 1991-03-15 | 1991-09-14 | 1992-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-15 | 1995-09-14 | 1996-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-15 | 1999-09-14 | 2000-03-15 | $7700.00 | Window Closed / Lapsed |