Patent US3348356A successfully refreshed from Google Patents.
US3348356A
Expired / Lapsed
US
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Method of covering a trayless package with heat shrinkable plastic film
Assignee: Dow Chemical Co
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Filing: 1963-11-13
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Granted: 1967-10-24
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Expires: 1983-11-13
Abstract
No abstract record available.
Inventors
- 👤 Edward G Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:31
CPC Classifications
B; B65; B65B; B65B53/00; B65B53/02; B65B53/06; B65B53/063; B65B25/00; B65B25/02; B65B25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF FORMING A TRAYLESS PACKAGE HAVING A HEAT SHRINKABLE PLASTIC FILM COVERING INCLUDING THE STEPS OF, PLACING THE OBJECT TO BE PACKAGED UPON A PLATFORM HAVING AN ANGLE BAR EDGE, DRAWING A SHEET OF PLASTIC FILM FROM A ROLL AND GUIDING THE FILM BENEATH THE PLATFORM THEN OVER THE OBJECT AND THE PLATFORM AND FINALLY TUCKING THE LEAD END OF THE FILM BETWEEN THE PLATFORM ANGLE BAR EDGE AND THE SHEET OF FILM, MOVING A HEAT SEALING PLATEN INTO ABUTMENT WITH THE ANGLE BAR EDGE TO HEAT SEAL THE
Claim 2
Independent Claim
91 words
A METHOD OF FORMING A TRAYLESS PACKAGE HAVING A HEAT SHRINKABLE PLASTIC FILM COVERING INCLUDING THE STEPS OF, PLACING THE OBJECT TO BE PACKAGED UPON A PLATFORM HAVING AN ANGLE BAR EDGE, DRAWING A SHEET OF PLASTIC FILM FROM A ROLL AND GUIDING THE FILM BENEATH THE PLATFORM THEN OVER THE OBJECT AND THE PLATFORM AND FINALLY TUCKING THE LEAD END OF THE FILM BETWEEN THE PLATFORM ANGLE BAR EDGE AND THE SHEET OF FILM, MOVING A HEAT SEALING PLATEN INTO ABUTMENT WITH THE ANGLE BAR EDGE TO HEAT SEAL THE
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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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |