US3365346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treatment of tow
Assignee: Eastman Kodak Co
•
Filing: 1963-12-11
•
Granted: 1968-01-23
•
Expires: 1983-12-11
Abstract
No abstract record available.
Inventors
- 👤 Fritz Theodore Calvin
- 👤 Dyer Richard Fairbanks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:54
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0204; A24D3/0212; A24D3/022; F; F26; F26B; F26B13/00; F26B13/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A PROCESS FOR THE PRODUCTION OF TOBACCO SMOKE FILTER ELEMENTS WHICH COMPRISES WITHDRAWING CRIMPED MULTI-FILAMENT TOW FROM A TOW SOURCE, BANDING SAID TOW TO A SUBSTANTIALLY UNIFORM FILAMENT DISTRIBUTION ACROSS THE WIDTH OF SAID TOW, PASSING THE TOW NEXT IN CONTACT WITH A DRIVEN ROLL, SAID ROLL BEING AT LEAST PARTIALLY IMMERSED IN A LIQUID BATH OF ADDITIVE, SAID ADDITIVE BEING APPLIED TO THE SURFACE OF SAID TOW AS IT PASSES IN CONTACT THEREWITH, WORKING ADDITIVE INTO SAID TOW TO A SUBSTANTIALLY UNIFORM DISTRIBUTION AND REMOVING ANY EXCESS ADDITIVE THEREFROM, NEXT DRYING THE TREATED TOW, THEREBY REMOVING ANY LIQUID THEREFROM, AND, AFTER BLOOMING SAID TOW, COMPACTING THE ADDITIVE-CONTAINING TOW INTO THE FORM OF TOBACCO SMOKE FILTER ELEMENTS.
Claim 2
Dependent Claim
117 words
A PROCESS FOR THE PRODUCTION OF TOBACCO SMOKE FILTER ELEMENTS WHICH COMPRISES WITHDRAWING CRIMPED MULTI-FILAMENT TOW FROM A TOW SOURCE, BANDING SAID TOW TO A SUBSTANTIALLY UNIFORM FILAMENT DISTRIBUTION ACROSS THE WIDTH OF SAID TOW, PASSING THE TOW NEXT IN CONTACT WITH A DRIVEN ROLL, SAID ROLL BEING AT LEAST PARTIALLY IMMERSED IN A LIQUID BATH OF ADDITIVE, SAID ADDITIVE BEING APPLIED TO THE SURFACE OF SAID TOW AS IT PASSES IN CONTACT THEREWITH, WORKING ADDITIVE INTO SAID TOW TO A SUBSTANTIALLY UNIFORM DISTRIBUTION AND REMOVING ANY EXCESS ADDITIVE THEREFROM, NEXT DRYING THE TREATED TOW, THEREBY REMOVING ANY LIQUID THEREFROM, AND, AFTER BLOOMING SAID TOW, COMPACTING THE ADDITIVE-CONTAINING TOW INTO THE FORM OF TOBACCO SMOKE FILTER ELEMENTS.
References Cited (Backward Citations)
US2904050A
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US3161557A
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US3098370A
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US2881772A
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US3019130A
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US3244544A
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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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |