US3251531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Egg carton
Assignee: Michigan Carton Co
•
Filing: 1962-02-07
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Granted: 1966-05-17
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Expires: 1982-02-07
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hook
- 👤 James A Mccormic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:23
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/30; B65D85/32; B65D85/327; B65D85/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
AN EGG CARTON OF THE MACHINE SET-UP TYPE HAVING SPACED WALL MEMBERS, BOTTOM MEMBERS, AN INVERTED VSHAPED RIDGE OPEN FROM THE BOTTOM TO THE TOP THEREOF AND FORMING A LONGITUDINAL PARTITION CONNECTING TOGETHER SAID BOTTOM MEMBERS WITH THE BOTTOM OF SAID CARTON BEING ELEVATED IN ITS CENTRAL PORTION AND NARROWER THAN THE TOP OF SAID CARTON, TRANSVERSE PARTITIONS HALF OF WHICH ARE DEEP AND REACH TO THE BOTTOM OF SAID CARTON WHILE HALF ARE SHALLOW WITH UNBROKEN BOTTOMS WITH A PERFORATION THROUGH SAME ADJACENT BUT SPACED FROM SAID BOTTOM, SAID TRANSVERSE PARTITIONS COOPERATING WITH SAID LONGITUDINAL PARTITION TO SEPARATE THE INTERIOR OF THE EGG CARTON INTO A MULTIPLICITY OF INDIVIDUAL EGG RECEIVING POCKETS, SAID INVERTED V-SHAPED RIDGE BEING CROSS SLIT TO RECEIVE SAID TRANSVERSE PARTITIONS WITH SAID SLITS WHICH RECEIVE AT LEAST THE BOTTOM PORTION OF SAID SHALLOW TRANSVERSE PARTITIONS HAVING HOOKS FOR ENGAGING SAID PERFORATION TO ANCHOR AND HOLD SAID HOLLOW PARTITIONS IN SET-UP POSITION, AND A COVER MEMBER NORMALLY CLOSING SAID EGG CARTON, SAID LONGITUDINAL PARTITION HAVING LONGITUDINALLY ALIGNED PORTIONS EXTENDING ABOVE SAID RIDGE, WITH ONE ADJACENT EACH CROSS PARTITION AT THE END OF EACH PAIR OF OPPOSITE INDIVIDUAL EGG RECEIVING POCKETS AND ENGAGING THE CENTRAL UNDER PORTION OF SAID COVER MEMBER AND FORMING TWO SPACED APART ROWS OF LONGITUDINAL SUPPORTS THEREFOR.
Claim 2
Dependent Claim
214 words
AN EGG CARTON OF THE MACHINE SET-UP TYPE HAVING SPACED WALL MEMBERS, BOTTOM MEMBERS, AN INVERTED VSHAPED RIDGE OPEN FROM THE BOTTOM TO THE TOP THEREOF AND FORMING A LONGITUDINAL PARTITION CONNECTING TOGETHER SAID BOTTOM MEMBERS WITH THE BOTTOM OF SAID CARTON BEING ELEVATED IN ITS CENTRAL PORTION AND NARROWER THAN THE TOP OF SAID CARTON, TRANSVERSE PARTITIONS HALF OF WHICH ARE DEEP AND REACH TO THE BOTTOM OF SAID CARTON WHILE HALF ARE SHALLOW WITH UNBROKEN BOTTOMS WITH A PERFORATION THROUGH SAME ADJACENT BUT SPACED FROM SAID BOTTOM, SAID TRANSVERSE PARTITIONS COOPERATING WITH SAID LONGITUDINAL PARTITION TO SEPARATE THE INTERIOR OF THE EGG CARTON INTO A MULTIPLICITY OF INDIVIDUAL EGG RECEIVING POCKETS, SAID INVERTED V-SHAPED RIDGE BEING CROSS SLIT TO RECEIVE SAID TRANSVERSE PARTITIONS WITH SAID SLITS WHICH RECEIVE AT LEAST THE BOTTOM PORTION OF SAID SHALLOW TRANSVERSE PARTITIONS HAVING HOOKS FOR ENGAGING SAID PERFORATION TO ANCHOR AND HOLD SAID HOLLOW PARTITIONS IN SET-UP POSITION, AND A COVER MEMBER NORMALLY CLOSING SAID EGG CARTON, SAID LONGITUDINAL PARTITION HAVING LONGITUDINALLY ALIGNED PORTIONS EXTENDING ABOVE SAID RIDGE, WITH ONE ADJACENT EACH CROSS PARTITION AT THE END OF EACH PAIR OF OPPOSITE INDIVIDUAL EGG RECEIVING POCKETS AND ENGAGING THE CENTRAL UNDER PORTION OF SAID COVER MEMBER AND FORMING TWO SPACED APART ROWS OF LONGITUDINAL SUPPORTS THEREFOR.
References Cited (Backward Citations)
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US1962296A
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US1922145A
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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) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |