US3080102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve bag
Assignee: Bemis Brothers Bag Co
•
Filing: 1958-03-24
•
Granted: 1963-03-05
•
Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 August F Ottinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:13
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; B65D31/142
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A VALVE BAG COMPRISING A HEAT-SEALABLE PLASTIC TUBE, SAID TUBE HAVING AN INTUCKED VALVE FLAP AT ONE CORNER THEREOF, SAID FLAP HAVING A CENTRAL FOLD SPACED FROM THE RESPECTIVE END OF THE TUBE, A FLEXIBLE SLEEVE EXTENDING INWARD FROM THE VALVE FLAP, SAID SLEEVE BEING FOLDED IN HALF ON A GENERALLY CENTRAL FOLD IN LINE WITH THE CENTRAL FOLD OF THE VALVE FLAP, THE OUTER END PORTION OF THE SLEEVE LAPPING AND BEING SECURED TO THE VALVE FLAP, THE TOTAL WIDTH OF SAID SLEEVE BEING LESS THAN THE TOTAL WIDTH OF THE INNER END EDGE OF THE VALVE FLAP AND THE SLEEVE HAVING SIDE EDGE PORTIONS SPACED INWARD FROM THE RESPECTIVE END EDGES OF THE TUBE, AND SAID TUBE HAVING ITS WALLS HEAT-SEALED TOGETHER BY A HEAT SEAL CONSTITUTING AN END CLOSURE FOR THE TUBE EXTENDING TRANSVERSELY ACROSS SAID END OF THE TUBE AND INCLUDING A PORTION LOCATED OUTWARD OF SAID SIDE EDGE PORTIONS OF THE SLEEVE AND A PORTION LOCATED INWARD OF AND ADJACENT SAID SIDE EDGE PORTIONS OF THE SLEEVE, THE LATTER PORTION OF SAID HEAT SEAL CONSTITUTING A HEAT SEAL FOR SAID SIDE EDGE PORTIONS OF THE SLEEVE.
Claim 2
Dependent Claim
191 words
A VALVE BAG COMPRISING A HEAT-SEALABLE PLASTIC TUBE, SAID TUBE HAVING AN INTUCKED VALVE FLAP AT ONE CORNER THEREOF, SAID FLAP HAVING A CENTRAL FOLD SPACED FROM THE RESPECTIVE END OF THE TUBE, A FLEXIBLE SLEEVE EXTENDING INWARD FROM THE VALVE FLAP, SAID SLEEVE BEING FOLDED IN HALF ON A GENERALLY CENTRAL FOLD IN LINE WITH THE CENTRAL FOLD OF THE VALVE FLAP, THE OUTER END PORTION OF THE SLEEVE LAPPING AND BEING SECURED TO THE VALVE FLAP, THE TOTAL WIDTH OF SAID SLEEVE BEING LESS THAN THE TOTAL WIDTH OF THE INNER END EDGE OF THE VALVE FLAP AND THE SLEEVE HAVING SIDE EDGE PORTIONS SPACED INWARD FROM THE RESPECTIVE END EDGES OF THE TUBE, AND SAID TUBE HAVING ITS WALLS HEAT-SEALED TOGETHER BY A HEAT SEAL CONSTITUTING AN END CLOSURE FOR THE TUBE EXTENDING TRANSVERSELY ACROSS SAID END OF THE TUBE AND INCLUDING A PORTION LOCATED OUTWARD OF SAID SIDE EDGE PORTIONS OF THE SLEEVE AND A PORTION LOCATED INWARD OF AND ADJACENT SAID SIDE EDGE PORTIONS OF THE SLEEVE, THE LATTER PORTION OF SAID HEAT SEAL CONSTITUTING A HEAT SEAL FOR SAID SIDE EDGE PORTIONS OF THE SLEEVE.
References Cited (Backward Citations)
US2034217A
Cited
US2437693A
Cited
US2676745A
Cited
US2799314A
Cited
US2708067A
Cited
US2865556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |