US2953837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter tow made from fine filaments and low total denier
Assignee: Eastman Kodak Co
•
Filing: 1958-08-28
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Granted: 1960-09-27
•
Expires: 1978-08-28
Abstract
No abstract record available.
Inventors
- 👤 Robert T Crawford
- 👤 Joel B Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:53
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/224; A; A24; A24D; A24D3/00; A24D3/02; A24D3/0204; A24D3/0212; A24D3/022; A24D3/0229; A24D3/0237; A24D3/06; A24D3/14; B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/18; D02; D02G; D02G1/00; D02G1/12; D06M13/144; D06M7/00; D06M2200/00; D06M2200/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2967; Y10T428/2969; Y10T428/298
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
AN ARTICLE OF MANUFACTURE COMPRISING AN INTEREMEDIATE PRODUCT FOR USE IN THE MANUFACTURE OF CIGARETTE FILTER TIP ELEMENTS OF WHICH SUBSTANTIALLY ALL OF THE FILAMENTS ARE PARALLIZED AND COEXTENSIVE, SAID INTERMEDIATE PRODUCT BEING A BALE OF SUBSTANTIALLY UNTWISTED, ELONGATED, CRIMPED CONTINUOUS FILAMENT TOW OF WHICH THE FILAMENTS IN THE AGGREGATE ARE SUBSTANTIALLY PARALLEL, SAID TOW BEING PRINCIPALLY COMPRISED OF FILAMENTS OF UNPLASTICIZED BUT PLASTICIZABLE CELLULOSE ACETATE, SAID FILAMENTS BEING ABOUT 0.6 TO 16 DENIER PER FILAMENT AND THE TOTAL DENIER OF THE TOW BEING WITHIN THE RANGE CORRESPONDING TO 15,000100,000, THE FILAMENTS MAKING UP THE TOW HAVING AT LEAST 8 CRIMPS PER INCH AND THE CRIMP BEING SUBSTANTIALLY UNIFORM AND FREE OF SKIPS, AND THE TOW BEING CHARACTERIZED IN THAT IT CARRIES A COMPOSITION CONSISTING ESSENTIALLY OF MINERAL OIL, SORBITAN MONOLAURATE AND POLYOXYETHYLENE SOLUTION ONOLAURATE.
Claim 2
Dependent Claim
135 words
AN ARTICLE OF MANUFACTURE COMPRISING AN INTEREMEDIATE PRODUCT FOR USE IN THE MANUFACTURE OF CIGARETTE FILTER TIP ELEMENTS OF WHICH SUBSTANTIALLY ALL OF THE FILAMENTS ARE PARALLIZED AND COEXTENSIVE, SAID INTERMEDIATE PRODUCT BEING A BALE OF SUBSTANTIALLY UNTWISTED, ELONGATED, CRIMPED CONTINUOUS FILAMENT TOW OF WHICH THE FILAMENTS IN THE AGGREGATE ARE SUBSTANTIALLY PARALLEL, SAID TOW BEING PRINCIPALLY COMPRISED OF FILAMENTS OF UNPLASTICIZED BUT PLASTICIZABLE CELLULOSE ACETATE, SAID FILAMENTS BEING ABOUT 0.6 TO 16 DENIER PER FILAMENT AND THE TOTAL DENIER OF THE TOW BEING WITHIN THE RANGE CORRESPONDING TO 15,000100,000, THE FILAMENTS MAKING UP THE TOW HAVING AT LEAST 8 CRIMPS PER INCH AND THE CRIMP BEING SUBSTANTIALLY UNIFORM AND FREE OF SKIPS, AND THE TOW BEING CHARACTERIZED IN THAT IT CARRIES A COMPOSITION CONSISTING ESSENTIALLY OF MINERAL OIL, SORBITAN MONOLAURATE AND POLYOXYETHYLENE SOLUTION ONOLAURATE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |