Patent US3364838A successfully refreshed from Google Patents.
US4186786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colored interlocking closure strips for a container
Assignee: Union Carbide Corp
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Filing: 1978-09-29
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Granted: 1980-02-05
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Expires: 1998-09-29
Abstract
Abstract An interlocking closure device comprising two closure profiles operable for being interlocked continuously over a predetermined length features the closure profiles having different colors, whereby the position of the closure profiles on a container can be easily identified visually in order to simplify the closing and opening of the container and/or the complete occlusion of the closure profiles can be easily verified visually.
Inventors
- 👤 George F. Kirkpatrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:23
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/25; B65D33/2508; B65D33/2541; B65D33/255; A; A44; A44B; A44B19/00; A44B19/10; A44B19/16
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
51 words
A container comprising two flexible sidewalls and an interlocking closure device including two closure profiles operable for being interlocked continuously over a predetermined length and connected to said sidewalls, wherein the improvement comprises said closure profiles having different colors for establishing visually the completeness of the occlusion of said closure profiles.
Claim 2
Dependent Claim
51 words
A container comprising two flexible sidewalls and an interlocking closure device including two closure profiles operable for being interlocked continuously over a predetermined length and connected to said sidewalls, wherein the improvement comprises said closure profiles having different colors for establishing visually the completeness of the occlusion of said closure profiles.
Claim 3
Dependent Claim
29 words
The container claimed in claim 1, wherein each of said closure profiles is a translucent primary color thereby producing a predetermined secondary color when said closure profiles are occluded.
Claim 4
Dependent Claim
25 words
The container as claimed in claim 1, wherein one of said closure profiles partially encircles the other closure profile when said closure profiles are occluded.
Claim 5
Dependent Claim
19 words
The container as claimed in claim 1, wherein at least one of said closure profiles includes a flange portion.
Claim 6
Dependent Claim
22 words
The container as claimed in claim 4, wherein said flange portion and the remainder of said one closure profile are different colors.
Claim 7
Dependent Claim
13 words
The container as claimed in claim 5, wherein said flange portion is transparent.
Claim 8
Dependent Claim
17 words
The container as claimed in claim 5, wherein said remainder of said one closure profile is transparent.
Claim 9
Dependent Claim
16 words
The container claimed in claim 1, wherein each of said closure profiles includes a flange portion.
Claim 10
Dependent Claim
16 words
The container as claimed in claim 1, wherein the bottom portion of said container is gusseted.
Claim 11
Dependent Claim
22 words
The container as claimed in claim 1, wherein said sidewalls are transparent at least in the region adjacent to said closure profiles.
Claim 12
Dependent Claim
12 words
The container as claimed in claim 1, wherein said sidewalls are opaque.
Claim 13
Dependent Claim
19 words
The container as claimed in claim 1, wherein each of said closure profiles includes a plurality of hook portions.
Claim 14
Dependent Claim
23 words
The container as claimed in claim 1, wherein at least one of said closure profiles passes sufficient light to be at least translucent.
Claim 15
Dependent Claim
17 words
The container as claimed in claim 1, wherein at least one of said closure profiles is opaque.
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) | 1983-02-04 | 1983-08-06 | 1984-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-04 | 1987-08-06 | 1988-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-04 | 1991-08-06 | 1992-02-05 | $7700.00 | Window Closed / Lapsed |