US3201505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for molding rod-like cigarette filter tip of cellulose ester flake
Assignee: Eastman Kodak Co
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Filing: 1962-05-24
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Granted: 1965-08-17
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Expires: 1982-05-24
Abstract
No abstract record available.
Inventors
- 👤 Lester W A Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:30
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR THE PRODUCTION OF ROD-LIKE ELEMENTS WHICH MAY BE USED FOR CIGARETTE FILTER TIPS WHICH COMPRISES THE STEPS OF TREATING PARTICLES OF CELLULOSE ACETATE WITH A RELATIVELY NON-VOLATILE MATERIAL FROM THE GROUP CONSISTING OF HEAT SENSITIVE MONOMERS, PARTIALLY POLYMERIZED POLYJMERS AND ORGANIC ESTERS HAVING SOLVENT ACTION ON SAID CELLULOSE ACETATE, SHAPING THE CELLULOSE ACETATE THUS TREATED INTO THE DESIRED ROD-LIKE ELEMENT FORM, HEATIN THE FORM TO CAUSE THE NON-VOLATILE MATERIAL TO FURTHER ACT ON THE CELLULOSE ACETATE AND SEVERING THE ROD INTO DESIRED LENGTHS.
Claim 2
Dependent Claim
86 words
A PROCESS FOR THE PRODUCTION OF ROD-LIKE ELEMENTS WHICH MAY BE USED FOR CIGARETTE FILTER TIPS WHICH COMPRISES THE STEPS OF TREATING PARTICLES OF CELLULOSE ACETATE WITH A RELATIVELY NON-VOLATILE MATERIAL FROM THE GROUP CONSISTING OF HEAT SENSITIVE MONOMERS, PARTIALLY POLYMERIZED POLYJMERS AND ORGANIC ESTERS HAVING SOLVENT ACTION ON SAID CELLULOSE ACETATE, SHAPING THE CELLULOSE ACETATE THUS TREATED INTO THE DESIRED ROD-LIKE ELEMENT FORM, HEATIN THE FORM TO CAUSE THE NON-VOLATILE MATERIAL TO FURTHER ACT ON THE CELLULOSE ACETATE AND SEVERING THE ROD INTO DESIRED LENGTHS.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |