Patent US3873738A successfully refreshed from Google Patents.
US3873738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Popcorn popping package
Assignee: Alcoa Corp
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Filing: 1973-02-12
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Granted: 1975-03-25
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Expires: 1993-02-12
Abstract
Abstract A package for popping popcorn is provided which includes a formed metal pan with a flexible envelope folded over the top of the pan and secured to its rim so that the envelope can be easily unfolded and expanded upward by the force of corn popping in the pan while confining the popped corn in the tube, whereby the popped corn is accessible through an open end of the envelope. A cover member may also be secured to the pan over the flexible tube, and may include weakened lines therein for opening it prior to popping the corn in the pan.
Inventors
- 👤 Richard J Zoeller
- 👤 Frank S Lazure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:17
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/34; B65D81/3407; B65D2581/00; B65D2581/34; B65D2581/3401; B65D2581/3402; B65D2581/3421
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
A PACKAGE FOR POPCORN COMPRISING A METAL PAN WITH A BOTTOM WALL AND AN UPSTANDING SIDE WALL THEREAROUND, KERNELS OF POPCORN IN THE PAN AND A FLEXIBLE TUBULAR ENVELOPE HAVING OPEN ENDS OF APPROXIMATELY EQUAL SIZE WITH A PERIPHERAL EDGE PORTION ON ONE END THEREOF SECURED TO THE SIDE WALL OF THE PAN AND THE ENVELOPE EXTENDING FREELY THEREFROM PROVIDING A FREE END, WITH THE ENVELOPE BODY FOLDED INWARD OVER THE POPCORN IN THE PAN TO BE EXPANDED UPWARD BY THE FORCE OF THE KERNELS POPPING IN THE PAN WHILE CONFINING THE KERNELS UNDER THE ENVELOPE BODY, WHEREBY THE POPPED KERNELS OF POPCORN ARE ACCESSIBLE THROUGH THE FREE END OF THE ENVELOPE.
Claim 2
Dependent Claim
112 words
A PACKAGE FOR POPCORN COMPRISING A METAL PAN WITH A BOTTOM WALL AND AN UPSTANDING SIDE WALL THEREAROUND, KERNELS OF POPCORN IN THE PAN AND A FLEXIBLE TUBULAR ENVELOPE HAVING OPEN ENDS OF APPROXIMATELY EQUAL SIZE WITH A PERIPHERAL EDGE PORTION ON ONE END THEREOF SECURED TO THE SIDE WALL OF THE PAN AND THE ENVELOPE EXTENDING FREELY THEREFROM PROVIDING A FREE END, WITH THE ENVELOPE BODY FOLDED INWARD OVER THE POPCORN IN THE PAN TO BE EXPANDED UPWARD BY THE FORCE OF THE KERNELS POPPING IN THE PAN WHILE CONFINING THE KERNELS UNDER THE ENVELOPE BODY, WHEREBY THE POPPED KERNELS OF POPCORN ARE ACCESSIBLE THROUGH THE FREE END OF THE ENVELOPE.
Claim 3
Dependent Claim
20 words
A package as set forth in claim 1 in which said flexible open-ended envelope is made of synthetic plastic material.
Claim 4
Dependent Claim
34 words
A package as set forth in claim 1 which includes a paperboard cover member secured over said flexible envelope, said cover member having weakening lines therein for opening at least a central portion thereof.
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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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |