US2940456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous tobacco smoke filter containing finely divided solids
Assignee: Eastman Kodak Co
•
Filing: 1956-02-08
•
Granted: 1960-06-14
•
Expires: 1976-02-08
Abstract
No abstract record available.
Inventors
- 👤 George P Touey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:57
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A TOBACCO SMOKE FILTER ELEMENT COMPRISING A BUNDLE OF CONTINUOUS CRIMPED CELLULOSIC FILAMENTS WHICH ARE GEN-
Claim 2
Dependent Claim
16 words
A TOBACCO SMOKE FILTER ELEMENT COMPRISING A BUNDLE OF CONTINUOUS CRIMPED CELLULOSIC FILAMENTS WHICH ARE GEN-
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Cited
US2301159A
Cited
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Cited
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Cited
US2832351A
Cited
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Cited
US2780228A
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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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |