US4166538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy opening envelope
Assignee: Mail Well Corp
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Filing: 1978-07-26
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Granted: 1979-09-04
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Expires: 1998-07-26
Abstract
Abstract An easy opening envelope has a rectangular front panel, a substantially rectangular back panel which faces the front panel and is connected to it at a fold line at the bottom edge of the panels, first and second side flaps which can be folded inwardly and which have an adhesive coating which secures the back panel in place, and an envelope flap extending the full width of the front panel. The back panel has a tear panel defined by perforations extending generally parallel to the upper edge of the back panel. Adhesive strips on the envelope flap are in registry with the tear panel when the envelope flap is closed. To open the envelope, the flap is gripped and pulled away from the back panel to cause the tear panel to be stripped away.
Inventors
- 👤 Bill M. Nixon
- 👤 Perry A. Thornburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:38
CPC Classifications
B; B65; B65D; B65D27/00; B65D27/32; B65D27/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
256 words
An easy opening envelope comprising: a front panel; a back panel having a common edge with said front panel and extending parallel thereto, said back panel having a tear panel adjacent its upper edge defined in part by perforations connecting a first point on the upper edge to a second, spaced point, said perforations extending generally parallel to the upper edge of said back panel except for an excursion portion which extends towards the upper edge of said back panel; an elongated envelope flap connected along one side edge to an opposing edge of said front panel, said flap adapted to overlie a substantial portion of, but not all of, said tear panel when closed, the opposite side edge of the flap, when closed, extending generally parallel to but stopping short of said perforations that are generally parallel to the upper edge of the back panel; and adhesive means for securing said envelope flap to said tear panel over part of their facing surfaces, said adhesive means including spaced strips of adhesive material, each of said adhesive strips being formed at the free edge of said envelope flap, with the non-adhesive spacing area of the strips being located in facing relationship to said excursion portion of the perforations such that said envelope flap and said tear panel include a non-adhering area to permit a user to insert a finger or implement beneath the envelope flap in said non-adhering area to open said envelope by pulling the flap and adhering tear panel away from said back panel.
Claim 2
Dependent Claim
256 words
An easy opening envelope comprising: a front panel; a back panel having a common edge with said front panel and extending parallel thereto, said back panel having a tear panel adjacent its upper edge defined in part by perforations connecting a first point on the upper edge to a second, spaced point, said perforations extending generally parallel to the upper edge of said back panel except for an excursion portion which extends towards the upper edge of said back panel; an elongated envelope flap connected along one side edge to an opposing edge of said front panel, said flap adapted to overlie a substantial portion of, but not all of, said tear panel when closed, the opposite side edge of the flap, when closed, extending generally parallel to but stopping short of said perforations that are generally parallel to the upper edge of the back panel; and adhesive means for securing said envelope flap to said tear panel over part of their facing surfaces, said adhesive means including spaced strips of adhesive material, each of said adhesive strips being formed at the free edge of said envelope flap, with the non-adhesive spacing area of the strips being located in facing relationship to said excursion portion of the perforations such that said envelope flap and said tear panel include a non-adhering area to permit a user to insert a finger or implement beneath the envelope flap in said non-adhering area to open said envelope by pulling the flap and adhering tear panel away from said back panel.
Claim 3
Dependent Claim
41 words
An easy opening envelope as defined in claim 1 wherein said envelope further includes inwardly-folded side flaps extending from opposite side edges of said front panel, said back panel being secured to said side flaps by adhesive coatings on facing surfaces.
References Cited (Backward Citations)
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Cited
US1336646A
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US1984901A
Cited
US2083158A
Cited
US3322329A
Cited
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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) | 1982-09-03 | 1983-03-05 | 1983-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-03 | 1987-03-05 | 1987-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-03 | 1991-03-05 | 1991-09-04 | $7700.00 | Window Closed / Lapsed |