Patent US3179024A successfully refreshed from Google Patents.
US3179024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and arrangement for producing crimped flat material
Assignee: Individual
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Filing: 1963-01-21
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Granted: 1965-04-20
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Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Muller Paul Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:30
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/12; B31F1/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE METHOD OF TREATING AN ELONGATED WEB OF FIBROUS STRIP MATERIAL TO RENDER THE SAME PARTICULARLY ADAPTED TO BE GATHERED LATERALLY, FORMED INTO A CYLINDRICAL ROD, AND ENCLOSED IN A WRAPPER TO MAKE A FILTER FOR TOBACCO SMOKE, THE STEPS COMPRISING: TREATING SAID WEB OF SOFTEN AND RENDER THE SAME YIELDING; LONGITUDINALLY GROOVING THE SOFTENED WEB WHILE PREVENTING ANY SUBSTANTIAL TRANSVERSE SHRINKAGE THEREOF OF BOTH FORM THEREIN A PLURALITY OF CLOSELY SPACED LONGITUDINAL CORRUGATIONS AND LATERALLY STRETCH THE MATERIAL OF THE SOFTENED WEB TO FORM THEREIN LATERALLY SPACED LONGITUDINAL ZONEZ OF LESSER THICKNESS WHERE THE FIBERS OF THE MATERIAL ARE SOMEWHAT SEPARATED; AND TREATING THE CORRUGATED STRETCHED WEB TO REHARDEN THE SAME AND SET SAID CORRUGATIONS THEREIN.
Claim 2
Independent Claim
117 words
THE METHOD OF TREATING AN ELONGATED WEB OF FIBROUS STRIP MATERIAL TO RENDER THE SAME PARTICULARLY ADAPTED TO BE GATHERED LATERALLY, FORMED INTO A CYLINDRICAL ROD, AND ENCLOSED IN A WRAPPER TO MAKE A FILTER FOR TOBACCO SMOKE, THE STEPS COMPRISING: TREATING SAID WEB OF SOFTEN AND RENDER THE SAME YIELDING; LONGITUDINALLY GROOVING THE SOFTENED WEB WHILE PREVENTING ANY SUBSTANTIAL TRANSVERSE SHRINKAGE THEREOF OF BOTH FORM THEREIN A PLURALITY OF CLOSELY SPACED LONGITUDINAL CORRUGATIONS AND LATERALLY STRETCH THE MATERIAL OF THE SOFTENED WEB TO FORM THEREIN LATERALLY SPACED LONGITUDINAL ZONEZ OF LESSER THICKNESS WHERE THE FIBERS OF THE MATERIAL ARE SOMEWHAT SEPARATED; AND TREATING THE CORRUGATED STRETCHED WEB TO REHARDEN THE SAME AND SET SAID CORRUGATIONS THEREIN.
References Cited (Backward Citations)
US1550084A
Cited
US2164702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |