Patent US5400915A successfully refreshed from Google Patents.
US5400915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container window seal
Assignee: MPT Inc
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Filing: 1994-03-21
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Granted: 1995-03-28
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Expires: 2014-03-21
Abstract
Abstract A seal for a container is described for sealing a product viewing window. In one embodiment, an opening is formed in the lid of a container. A barrier layer of transparent film is adhesively secured to the inside of the window. An outer layer of transparent film is adhesively secured to the outside of the barrier layer and the inside of the window. A label having a window formed in its middle is adhesively secured to the outside of the window and to the outside of the outer layer of film. Variations of the seal are described as alternate embodiments.
Inventors
- 👤 Michael R. Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:49
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0214; B65D43/0222; B65D25/00; B65D25/54; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00231; B65D2543/00259; B65D2543/00268; B65D2543/00277; B65D2543/00296; B65D2543/00314; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
74 words
In a container having a viewing window covered by transparent window film for permitting viewing of the container contents, the improvement comprising: a barrier layer of transparent film located between said window film and the interior of said container; and a layer of adhesive securing the film of barrier layer to an inner wall surface surrounding said window; a portion of said adhesive being sandwiched between said barrier layer film and said winding film.
Claim 2
Dependent Claim
74 words
In a container having a viewing window covered by transparent window film for permitting viewing of the container contents, the improvement comprising: a barrier layer of transparent film located between said window film and the interior of said container; and a layer of adhesive securing the film of barrier layer to an inner wall surface surrounding said window; a portion of said adhesive being sandwiched between said barrier layer film and said winding film.
Claim 3
Dependent Claim
21 words
The improvement according to claim 1, further including a label secured by adhesive to an outer wall surface surrounding said window.
Claim 4
Dependent Claim
27 words
The improvement according to claim 2, wherein the label has an annular shape such that an opening provided in its central portion is aligned with said window.
Claim 5
Dependent Claim
19 words
The improvement according to claim 2, wherein the label and the layer of adhesive securing the label are transparent.
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) | 1998-03-27 | 1998-09-26 | 1999-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-03-27 | 2002-09-26 | 2003-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-03-27 | 2006-09-26 | 2007-03-28 | $7700.00 | Window Closed / Lapsed |