US3095023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic valve bag and method of making same
Assignee: Stamicarbon BV
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Filing: 1960-12-13
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Granted: 1963-06-25
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Expires: 1980-12-13
Abstract
No abstract record available.
Inventors
- 👤 Hendrik J Rang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:44
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; B65D31/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A VALVE BAG FOR PARTICULATE SUBSTANCES COMPRISING, IN COMBINATION: A PLASTIC TUBE HAVING ONE OF ITS ENDS COMPLETELY CLOSED, AND HAVING ITS OTHER END PARTIALLY CLOSED, THEREBY LEAVING A FILLING OPENING FOR THE PARTICULATE SUBSTANCES, AND A VALVE MEMBER CONNECTED TO THE OUTER SURFACE OF THE TUBE AND ABOUT SAID FILLING OPENING CONSISTING OF AN OPEN PLASTIC TUBULAR MEMBER ONE SIDE OF WHICH OVERLAPS THE END OF SAID TUBE ADJACENT SAID FILLING OPENING, HAVING A SINGLE SLIT AT ONE END THEREOF EXTENDING IN THE GENERAL LONGITUDINAL DIRECTION OF THE VALVE MEMBER AND INTO WHICH THE END OF THE TUBE ADJACENT THE OTHER SIDE OF SAID OPENING EXTENDS, WHEREBY SAID VALVE END IS ENABLED TO BE MOUNTED ABOUT THE FILLING OPENING AND SEALED TO SAID TUBE BY A CONTINUOUS SEAM ABOUT BUT NOT WITHIN SAID FILLING OPENING.
Claim 2
Dependent Claim
136 words
A VALVE BAG FOR PARTICULATE SUBSTANCES COMPRISING, IN COMBINATION: A PLASTIC TUBE HAVING ONE OF ITS ENDS COMPLETELY CLOSED, AND HAVING ITS OTHER END PARTIALLY CLOSED, THEREBY LEAVING A FILLING OPENING FOR THE PARTICULATE SUBSTANCES, AND A VALVE MEMBER CONNECTED TO THE OUTER SURFACE OF THE TUBE AND ABOUT SAID FILLING OPENING CONSISTING OF AN OPEN PLASTIC TUBULAR MEMBER ONE SIDE OF WHICH OVERLAPS THE END OF SAID TUBE ADJACENT SAID FILLING OPENING, HAVING A SINGLE SLIT AT ONE END THEREOF EXTENDING IN THE GENERAL LONGITUDINAL DIRECTION OF THE VALVE MEMBER AND INTO WHICH THE END OF THE TUBE ADJACENT THE OTHER SIDE OF SAID OPENING EXTENDS, WHEREBY SAID VALVE END IS ENABLED TO BE MOUNTED ABOUT THE FILLING OPENING AND SEALED TO SAID TUBE BY A CONTINUOUS SEAM ABOUT BUT NOT WITHIN SAID FILLING OPENING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |