Patent US3552091A successfully refreshed from Google Patents.
US3552091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for packaging articles in thermoplastic heat-shrinkable materials
Assignee: Reynolds Metals Co
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Filing: 1968-09-12
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Granted: 1971-01-05
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Expires: 1988-09-12
Abstract
Abstract APPARATUS FOR ENCAPSULATING ARTICLES IN HEAT-SHRINKABLE MATERIALS WHEREIN A PAIR OF BIPARTITE WEB JOINTS ARE FORMED ON THE BOTTOM OF A TRAY CARRIER. MEANS ARE PROVIDED TO CAUSE AN OVERFEED OF AN UPPER SOURCE OF THERMOPLASTIC WEB MATERIAL AND FOR PREVENTING ANY SUBSTANTIAL FEEDING FROM A LOWER SOURCE OF THERMOPLASTIC WEB MATERIAL AFTER A SEAL IS MADE BETWEEN THE WEBS SO AS TO POSITION A HEAT SEALED JUNCTURE THEREBETWEEN FOR SUBSEQUENT SEMI-AUTOMATIC ENCAPSULATION OF THE ARTICLE.
Inventors
- 👤 Andrew L Johnston
- 👤 Herbert S Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:58
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/10; B; B65; B65B; B65B67/00; B65B67/08; B65B67/10; B65B9/00; B65B9/02; B65B9/026
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |