US3185044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding flattened tubes
Assignee: Walter DÜrbeck Papiersackfabriken GmbH and Co KG
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Filing: 1962-12-10
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Granted: 1965-05-25
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Expires: 1982-12-10
Abstract
No abstract record available.
Inventors
- 👤 Ahlbrandt Andreas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:12
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/26; B31B70/262; B31B2160/00; B31B2160/10; B31B70/266; B31B70/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
AN APPARATUS FOR FOLDING ENDLESS FLAT RUNNING TUBELIKE WEBS ALONG AT LEAST ONE EDGE FOR PRODUCING BAG-LIKE CLOSED CONTAINERS COMPRISING GUIDE ELEMENTS SPACED IN THE FORM OF CIRCULAR PLATES OVER WHICH THE WEB IS FED, MEANS TO OPEN OUT THE FLATTENED WEB AND TURN THE WEB ABOUT ITS LONGITUDINAL AXIS HALF THE WIDTH OF THE LATERAL WEB PORTION, AND FOLDING ELEMENTS IN THE FORM OF CIRCULAR PLATES MOUNTED BETWEEN THE GUIDE ELEMENTS TO FOLD EACH LATERAL WEB PORTION INWARDLY ALONG LONGITUDINAL CREASE LINES FORMED IN THE WEB, THE FOLDING ELEMENTS BEING EQUI-CENTRALLY DISPOSED AT AN EXIT END DISPLACED LATERALLY OF EACH OTHET BY THE WIDTH OF THE PAIR OF THE TUBULAR WEB TO BE FOLLOWED.
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |