Patent US3309969A successfully refreshed from Google Patents.
US3309969A
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Methods and machines for forming cartons
Assignee: Packaging Corp of America
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Filing: 1964-09-28
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Granted: 1967-03-21
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Plough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:40
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/26; B31B50/52; B31B50/004; B31B50/0042; B31B50/74; B31B50/81; B31B50/82
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
A MACHINE FOR FOLDING GUSSETS DISPOSED ADJACENT ONE END OF A TUBULAR CARTON BLANK COMPRISING A CONVEYOR FOR SUPPORTING AND MOVING SUCH BLANK IN ONE DIRECTION, FIRST MEANS DISPOSED AT A STATION OF TRAVEL OF THE CONVEYED BLANK FOR SPREADING OPPOSITE SIDES OF SUCH BLANK WHILE BEING MOVED BY SAID CONVEYOR, AND SECOND MEANS CARRIED BY SAID CONVEYOR AND OPERATIVE SUBSEQUENT TO SPREADING OF THE SIDES FOR FOLDING THE GUSSETS INWARD BETWEEN SUCH SPREAD SIDES AS SUCH BLANK IS MOVED BY SAID CONVEYOR.
References Cited (Backward Citations)
US2521996A
Cited
US2584529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |