US3618482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tray forming method and apparatus
Assignee: Individual
•
Filing: 1969-06-16
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Granted: 1971-11-09
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Expires: 1989-06-16
Abstract
Abstract AN "IN-LINE" HYDRAULICALLY OR ELECTRICALLY OPERATED TRAY FORMING APPARATUS IS PROVIDED FOR FOLDING PAPERBOARDS BLANKS COMPRISNG A HOPPER FOR HOLDING THE PAPERBORD BLANKS, A GLUE DOBBING APPARTUS FOR APPLYING CONTROLLED QUANTITIES OF ADHESIVE TO THE BLANK WHILE THE BLANK IS IN THE HOPPER, A MANDREL FOR REMOVING THE GLUED BLANK FROM THE HOPPER AND FOR URGING THE GLUED BLANK INTO A DIE CAVITY WITHIN WHICH THE BLANK IS PROGRESSIVELY FOLDED INTO A TRAY.
Inventors
- 👤 Paul F Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:01
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/26; B31B50/44; B31B50/46; B31B50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |