US3033212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco smoke filter containing polyolefin cobweb additive
Assignee: Eastman Kodak Co
•
Filing: 1959-04-17
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Granted: 1962-05-08
•
Expires: 1979-04-17
Abstract
No abstract record available.
Inventors
- 👤 George P Touey
- 👤 John E Kiefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:18
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/08; A24D3/10; A24D3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A TOBACCO SMOKE FILTER ELEMENT COMPRISED OF A BASE OF CRIMPED, CONTINOUS FILAMENTS EXTENDING GENERALLY LONGTIDUNALLY OF THE FILTER ELEMENT, A CONTENT OF PLASTICIZER FOR THE AFORESAID FILAMENTS ASSOCIATED THEREWITH, THE FILTER ELEMENT BEING PARTICULARLY CHARACTERIZED IN THAT IT ALSO CONTAINS FROM 5-50% BASED ON THE WEIGHT OF THE FILTER ELEMENT, OF A POLYOLEFIN ADDITIVE COMPOSITION IN THE FORM OF COBEWB FILAMENTS INTIMATELY INTERMINGLED WITH THE BASE WHEREBY IT IS RENDERED DIFFICULT TO DISLODGE THE ADDITIVE FROM THE FINISHED FILTER ELEMENT.
Claim 2
Dependent Claim
81 words
A TOBACCO SMOKE FILTER ELEMENT COMPRISED OF A BASE OF CRIMPED, CONTINOUS FILAMENTS EXTENDING GENERALLY LONGTIDUNALLY OF THE FILTER ELEMENT, A CONTENT OF PLASTICIZER FOR THE AFORESAID FILAMENTS ASSOCIATED THEREWITH, THE FILTER ELEMENT BEING PARTICULARLY CHARACTERIZED IN THAT IT ALSO CONTAINS FROM 5-50% BASED ON THE WEIGHT OF THE FILTER ELEMENT, OF A POLYOLEFIN ADDITIVE COMPOSITION IN THE FORM OF COBEWB FILAMENTS INTIMATELY INTERMINGLED WITH THE BASE WHEREBY IT IS RENDERED DIFFICULT TO DISLODGE THE ADDITIVE FROM THE FINISHED FILTER ELEMENT.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |