Patent US3784740A successfully refreshed from Google Patents.
Patent US3145907A successfully refreshed from Google Patents.
US3145907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bags
Assignee: FR Hesser Maschinenfabrik AG
•
Filing: 1961-03-21
•
Granted: 1964-08-25
•
Expires: 1981-03-21
Abstract
No abstract record available.
Inventors
- 👤 Schwinger Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:20
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/18; B65D33/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
154 words
A BAG FORMED OF GENERALLY RECTANGULAR HEAT SEALABLE SHEET MATERIAL FOLDED TO FORM A TUBULAR BODY, OPPOSITE LATERAL EDGES OF SAID SHEET MATERIAL BEING OVERLAPPED, ADHESIVE MEANS SECURING SAID EDGES TOGETHER TO FORM A LONGITUDINAL SEAM OF SAID BODY, MARGINAL PORTIONS OF ONE END OF SAID SHEET BEING JUXTAPOSED, FURTHER ADHESIVE MEANS SECURING SAID MARGINAL PORTIONS TOGETHER TO FORM A TRANSVERSE SEAM AT ONE END OF SAID BODY PERPENDICULAR TO AND INTERSECTING THE LONGITUDINAL SEAM AT ONE END OF THE LONGITUDINAL SEAM, THE INTERSECTING SEAMS AT SAID ONE END OF THE BODY BEING FORMED BY OVERLAPPING PORTIONS OF SHEET MATERIAL DEFINING A NARROW LONGITUDINALLY EXTENDING CHANNEL OPENING INTO SAID BODY, AND A SUPPLEMENTAL THERMOPLASTIC MELTABLE SEALING STRIP EXTENDING TRANSVERSELY OF AND BEYOND THE OVERLAPPED EDGES OF THE SHEET MATERIAL AT THE INTERSECTION OF THE LONGITUDINAL AND TRANSVERSE SEAMS, SAID STRIP COMPRISING A SOLID MELTABLE PORTION WHICH, UPON HEATING, FLOWS TO CLOSE SAID CHANNEL COMPLETELY.
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |