US3648918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock package
Assignee: F M Howell and Co
•
Filing: 1970-08-19
•
Granted: 1972-03-14
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Expires: 1990-08-19
Abstract
Abstract A package of a tray and enclosing sleeve wherein the tray has inturned end flaps and the sleeve has an internal, depending locking tab of a length substantially equal to the spacing between the adjacent edges of the tray end flaps to swing downwardly between the tray and flaps when the tray is inserted into the sleeve to lock the tray against removal from the sleeve. In one form, the tray is open topped and the lock can be released. In another, the tray has a closed top and the sleeve is provided with a tear strip to open the package.
Inventors
- 👤 Edwin A Van Inwagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:47
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/38; B65D5/42; B65D5/54; B65D5/5405; B65D5/542
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
In a package including a sleeve and a tray slidable within the sleeve, means to lock the tray within the sleeve comprising, end flaps carried by the tray and foldable inwardly to overlie the tray, and a locking tab depending from the inner surface of the sleeve and having ends spaced from the sleeve ends a distance equal to the length of the tray end flaps to fit between the tray end flaps in abutting relation with the tray end flaps when the tray is inserted into the sleeve.
Claim 2
Dependent Claim
89 words
In a package including a sleeve and a tray slidable within the sleeve, means to lock the tray within the sleeve comprising, end flaps carried by the tray and foldable inwardly to overlie the tray, and a locking tab depending from the inner surface of the sleeve and having ends spaced from the sleeve ends a distance equal to the length of the tray end flaps to fit between the tray end flaps in abutting relation with the tray end flaps when the tray is inserted into the sleeve.
Claim 3
Dependent Claim
31 words
In a package as claimed in claim 1, wherein the locking tab is connected to the sleeve by a hinged connection and is biased toward the opposite side of the sleeve.
Claim 4
Dependent Claim
30 words
In a package as claimed in claim 2, wherein the sleeve has a tear strip extending the full length of the sleeve in a direction parallel to the locking tab.
Claim 5
Dependent Claim
56 words
In a package as claimed in claim 1, wherein the sleeve is folded up from a blank having a bottom panel, side panels and overlapping top panels with said panels being interconnected by fold lines to form a rectangular sleeve, and the locking tab is an extension of the underlying one of the overlapping top panels.
Claim 6
Dependent Claim
27 words
In a package as claimed in claim 4, wherein the locking tab is hingedly connected along a fold line to the top panel from which it extends.
References Cited (Backward Citations)
US2353376A
Cited
US3051366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |