US3078628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging apparatus
Assignee: WR Grace and Co
•
Filing: 1960-11-16
•
Granted: 1963-02-26
•
Expires: 1980-11-16
Abstract
No abstract record available.
Inventors
- 👤 Charles A Ready
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:47
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/42; B65B43/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
67 words
A METHOD OF PACKAGING WHICH COMPRISES EXTRUDING A MATERIAL INTO AN ESSENTIALLY NON-EXPANDABLE FLEXIBLE BAG MOUNTED ON THE EXTRUDER BARREL, WITH A SUBSTANTIALLY UNIFORM FORCE RESISTING THE MOVEMENT OF THE BAG OFF OF THE EXTRUDER AS IT IS BEING FILLED TO PROVIDE A TIGHT PACKAGE FREE FROM AIR SPACES THEN RAPIDLY PULLING THE FILLED BAG OFF OF THE EXTRUDER BARREL AND CLOSING THE OPEN END OF THE
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US2344054A
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US2337406A
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US2686128A
Cited
US2635799A
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US2729947A
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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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |