US3129871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bags
Assignee: Bemis Brothers Bag Co
•
Filing: 1961-09-26
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Granted: 1964-04-21
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Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Arnold F Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:02
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; B65D31/142; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/84; B31B70/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A VALVE BAG HAVING A CLOSURE AT ONE END COMPRISING INWARDLY DIRECTED END FLAPS AND FIRST AND SECOND SIDE FLAPS, ONE OF SAID END FLAPS CONSTITUTING A VALVE FLAP, A TUCK-IN VALVE SLEEVE COMPRISING A FLAT TUBE OVERLYING SAID VALVE FLAP, SAID FIRST SIDE FLAP BEING FOLDED OVER UPON THE OUTER WALL OF SAID TUBE AND THE OTHER END FLAP AND BEING ADHERED THERETO, SAID SECOND SIDE FLAP BEING FOLDED OVER UPON SAID FIRST SIDE FLAP AND ADHERED THERETO, SAID TUBE HAVING A PAIR OF CUTS LOCATED IN ITS OUTER WALL EXTENDING INWARD FROM ONE END THEREOF DEFINING A CUFF, SAID CUFF BEING FOLDED BACK ON THE OUTSIDE OF THE TUBE AND EXTENDING FROM ONE CUT AROUND ONE SIDE EDGE OF THE TUBE, ACROSS THE INNER WALL OF THE TUBE, AND AROUND THE OTHER SIDE EDGE OF THE TUBE TO THE OTHER CUT, SAID TUBE BEING POSITIONED ON SAID VALVE FLAP WITH SAID CUFF OVERLYING THE MARGIN FO THE VALVE FLAP AT THE INNER END OF THE VALVE FLAP WITH THE TUBE EXTENDING OUTWARD OVER THE VALVE FLAP, AND SAID CUFF BEING ADHERED TO THE VALVE FLAP.
Claim 2
Dependent Claim
187 words
A VALVE BAG HAVING A CLOSURE AT ONE END COMPRISING INWARDLY DIRECTED END FLAPS AND FIRST AND SECOND SIDE FLAPS, ONE OF SAID END FLAPS CONSTITUTING A VALVE FLAP, A TUCK-IN VALVE SLEEVE COMPRISING A FLAT TUBE OVERLYING SAID VALVE FLAP, SAID FIRST SIDE FLAP BEING FOLDED OVER UPON THE OUTER WALL OF SAID TUBE AND THE OTHER END FLAP AND BEING ADHERED THERETO, SAID SECOND SIDE FLAP BEING FOLDED OVER UPON SAID FIRST SIDE FLAP AND ADHERED THERETO, SAID TUBE HAVING A PAIR OF CUTS LOCATED IN ITS OUTER WALL EXTENDING INWARD FROM ONE END THEREOF DEFINING A CUFF, SAID CUFF BEING FOLDED BACK ON THE OUTSIDE OF THE TUBE AND EXTENDING FROM ONE CUT AROUND ONE SIDE EDGE OF THE TUBE, ACROSS THE INNER WALL OF THE TUBE, AND AROUND THE OTHER SIDE EDGE OF THE TUBE TO THE OTHER CUT, SAID TUBE BEING POSITIONED ON SAID VALVE FLAP WITH SAID CUFF OVERLYING THE MARGIN FO THE VALVE FLAP AT THE INNER END OF THE VALVE FLAP WITH THE TUBE EXTENDING OUTWARD OVER THE VALVE FLAP, AND SAID CUFF BEING ADHERED TO THE VALVE FLAP.
References Cited (Backward Citations)
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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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |