US2948282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous tobacco smoke filter elements
Assignee: Eastman Kodak Co
•
Filing: 1954-06-28
•
Granted: 1960-08-09
•
Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 James C White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:58
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A FILTER FOR A CIGARETTE COMPRISED ESSENTIALLY OF A FILTER ELEMENT MADE UP OF A BUNDLE OF LONGITUDINALLY ORIENTED FILAMENTS, THE FILAMENTS MAKING UP THE BUNDLE BEING CHARACTERIZED IN THAT SAID FILAMENTS: (A) ARE COMPRISED OF CELLULOSE ACETATE, (B) ARE CONTINUOUS, CRIMPED FILAMENTS, (C) CARRY A CONTENT OF PLASTICIZER, (D) CARRY TOBACCO PARTICLES OF 100-200 MESH DISPERSED ON THE SURFACE OF THE FILAMENTS, AND THE FILAMENTS OF THE THE BUNDLE ARE COALESCED TO OTHER FILAMENTS AT RANDOM POINTS OF CONTACT AND TO THE TOBACCO PARTICLES BY MEANS OF BONDS OBTAINED TO A SUBSTANTIAL EXTENT BY THE AFORESAID PLASTICIZER CONTENT.
Claim 2
Dependent Claim
99 words
A FILTER FOR A CIGARETTE COMPRISED ESSENTIALLY OF A FILTER ELEMENT MADE UP OF A BUNDLE OF LONGITUDINALLY ORIENTED FILAMENTS, THE FILAMENTS MAKING UP THE BUNDLE BEING CHARACTERIZED IN THAT SAID FILAMENTS: (A) ARE COMPRISED OF CELLULOSE ACETATE, (B) ARE CONTINUOUS, CRIMPED FILAMENTS, (C) CARRY A CONTENT OF PLASTICIZER, (D) CARRY TOBACCO PARTICLES OF 100-200 MESH DISPERSED ON THE SURFACE OF THE FILAMENTS, AND THE FILAMENTS OF THE THE BUNDLE ARE COALESCED TO OTHER FILAMENTS AT RANDOM POINTS OF CONTACT AND TO THE TOBACCO PARTICLES BY MEANS OF BONDS OBTAINED TO A SUBSTANTIAL EXTENT BY THE AFORESAID PLASTICIZER CONTENT.
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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) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |