US3904074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging system
Assignee: Kimberly Clark Tissue Co
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Filing: 1974-08-28
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Granted: 1975-09-09
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Expires: 1994-08-28
Abstract
Abstract A packaging system includes a container body having an upper lip defining an opening into an interior compartment thereof, and a unitary, snap-on closure attached to the container body. The closure has a top wall overlying the opening into the interior compartment, a downwardly extending peripheral skirt overlying the outer walls of the container body exteriorly of the internal compartment, and an integral flexible transverse hinge intermediate front and rear ends thereof to divide the closure into a rear stationary cover portion and a forward movable door portion. The integral hinge includes grooves or thinned regions in the closure peripheral skirt. The cover portion has inwardly directed projections and rearwardly facing shoulders integrally formed with the skirt for cooperating with downwardly facing projections and forwardly facing shoulders, respectively, of the container body to retain the cover portion on the container body when the door portion of the closure is in either an open position permitting access to the interior compartment, or a closed position sealing the opening into the interior compartment. In a preferred embodiment of the invention a substantially flat, moisture impervious sheet overlies the opening into the interior compartment of the container body and is secured to the upper lip thereof.
Inventors
- 👤 Louis S Hoffman
- 👤 Harry Spruyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:42
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D43/14; B65D43/16; B65D43/161; B65D51/00; B65D51/18; B65D51/20; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0018; B65D2251/0021; B65D2251/0068; B65D2251/0093; B65D2251/10; B65D2251/1016; B65D2251/105; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/0012; B65D2543/00175; B65D2543/00194; B65D2543/00231; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00574; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00648; B65D2543/00675; B65D2543/00694; B65D2543/00712; B65D2543/00722; B65D2543/00759; B65D2543/00787; B65D2543/00805
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
225 words
A packaging system comprising: A. A container body including a bottom wall, peripheral walls extending upwardly from said bottom wall and terminating in an upper lip which defines an opening into an interior compartment of said body, peripheral downwardly facing shoulder means adjacent said lip and disposed exteriorly of said interior compartment, and transversely spaced, forwardly facing shoulders adjacent said lip and disposed exteriorly of said inner compartment intermediate opposed ends of the said body; B. a unitary, snap-on closure including a top wall overlying the opening into the interior compartment of the container body, a peripheral skirt overlying outer surfaces of the peripheral walls, and an integral flexible transverse hinge intermediate front and rear ends of said closure to divide said closure into a stationary cover portion and a movable door portion; C. said stationary cover portion including inwardly directed projection means in closely positioned underlying relationship with the downwardly facing shoulder means of said container body, and transversely spaced, rearwardly facing shoulders in closely positioned overlying relationship with the transversely spaced, forwardly facing shoulders of said container body, whereby said closure will be retained on the container body when the door portion of the closure is in either an open position permitting access to the interior compartment of the container body, or a closed position sealing the open end of said container body.
Claim 2
Dependent Claim
225 words
A packaging system comprising: A. A container body including a bottom wall, peripheral walls extending upwardly from said bottom wall and terminating in an upper lip which defines an opening into an interior compartment of said body, peripheral downwardly facing shoulder means adjacent said lip and disposed exteriorly of said interior compartment, and transversely spaced, forwardly facing shoulders adjacent said lip and disposed exteriorly of said inner compartment intermediate opposed ends of the said body; B. a unitary, snap-on closure including a top wall overlying the opening into the interior compartment of the container body, a peripheral skirt overlying outer surfaces of the peripheral walls, and an integral flexible transverse hinge intermediate front and rear ends of said closure to divide said closure into a stationary cover portion and a movable door portion; C. said stationary cover portion including inwardly directed projection means in closely positioned underlying relationship with the downwardly facing shoulder means of said container body, and transversely spaced, rearwardly facing shoulders in closely positioned overlying relationship with the transversely spaced, forwardly facing shoulders of said container body, whereby said closure will be retained on the container body when the door portion of the closure is in either an open position permitting access to the interior compartment of the container body, or a closed position sealing the open end of said container body.
Claim 3
Dependent Claim
44 words
The packaging system according to claim 1, wherein a portion of the inwardly directed projection means of the cover portion is positioned closely adjacent each rearwardly facing shoulder of said cover portion, said rearwardly facing shoulders being disposed closely adjacent to the transverse hinge.
Claim 4
Dependent Claim
15 words
The packaging system according to claim 1, wherein said closure is of a one-piece construction.
Claim 5
Dependent Claim
27 words
The packaging system according to claim 1, including a moisture-impervious sheet overlying the opening of the container body and disposed between the container body and the closure.
Claim 6
Dependent Claim
32 words
The packaging system according to claim 4, including cooperable latch means on said container body and door portion of said closure for aiding in maintaining the door portion in its closed position.
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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |