US2908280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous tobacco smoke filters
Assignee: Eastman Kodak Co
•
Filing: 1954-05-28
•
Granted: 1959-10-13
•
Expires: 1974-05-28
Abstract
No abstract record available.
Inventors
- 👤 George P Touey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:31
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A TOBACCO SMOKE FILTER ELEMENT CONSISTING OF MORE THAN 10,000 CONTINUOUS CRIMPED CELLULOSE ACETATE UNCOATED FILAMENTS OF AT LEAST 5 DENIER PER FILAMENT, MORE THAN ABOUT EIGHT PARTS BY WEIGHT OF A PLASTICIZER FROM THE GROUP CONSISTING OF METHYLPHTHALYETHYLGLYCOLLATE AND DIMETHOXYETHYLPHTHALATE, AND AT LEAST TWO PARTS BY WEIGHT OF A PECTIC MATERIAL OF 100-200 MESH SIZE FROM THE GROUP CONSISTING OF PECTIC ACID, SODIUM PECTATE, CALCIUM PEC-
Claim 2
Dependent Claim
67 words
A TOBACCO SMOKE FILTER ELEMENT CONSISTING OF MORE THAN 10,000 CONTINUOUS CRIMPED CELLULOSE ACETATE UNCOATED FILAMENTS OF AT LEAST 5 DENIER PER FILAMENT, MORE THAN ABOUT EIGHT PARTS BY WEIGHT OF A PLASTICIZER FROM THE GROUP CONSISTING OF METHYLPHTHALYETHYLGLYCOLLATE AND DIMETHOXYETHYLPHTHALATE, AND AT LEAST TWO PARTS BY WEIGHT OF A PECTIC MATERIAL OF 100-200 MESH SIZE FROM THE GROUP CONSISTING OF PECTIC ACID, SODIUM PECTATE, CALCIUM PEC-
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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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |