Patent US3280704A successfully refreshed from Google Patents.
US3280704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for folding endless flat tubes
Assignee: Individual
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Filing: 1965-12-13
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Granted: 1966-10-25
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Expires: 1985-12-13
Abstract
No abstract record available.
Inventors
- 👤 Ahlbrandt Andreas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:59
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
135 words
AN APPARATUS FOR TRANSFORMING A FLAT RUNNING TUBELIKE WEB HAVING INDICIA ON A MARGINAL PORTION THEREOF COMPRISING INTERNAL STRUCTURAL MEANS INCLUDING ELONGATED FIRST AND SECOND GUIDE MEANS ORIENTED IN THE DIRECTION OF LONGITUDINAL TRAVEL OF THE WEB, MEANS SUPPORTING SAID GUIDE MEANS SPACED APART IN A DIRECTION PERPENDICULAR TO THE INTENDED PLANE TRAVEL OF THE WEB IN SPACIAL LATERAL DISPLACEMENT AT BOTH ENDS, SAID WEB BEING FED OVER SAID INTERNAL STRUCTURE MEANS AND OPENED OUT THEREBY, MEANS TO SUPPORT AND RETAIN THE POSITION OF THE INTERNAL STRUCTURAL MEANS WHEN A WEB IS FED OVER SAME, MEANS ADAPTED TO ACT ON THE LATERAL PORTIONS OF SAID WEB AS IT PASSES OVER THE INTERNAL STRUCTURAL MEANS TO INITIATE TAUTNESS IN SAID WEB DURING THE TRANSLATION THEREOF, AND MEANS ADAPTED TO REFLATTEN THE WEB ALONG NEW FOLD LINES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |