US3279476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cigarette filter
Assignee: Beatrice Companies Inc
•
Filing: 1964-04-16
•
Granted: 1966-10-18
•
Expires: 1984-04-16
Abstract
No abstract record available.
Inventors
- 👤 Peter P Noznick
- 👤 Kwoh H Li
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:23
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
THE COMBINATION WITH A SMOKER''S ARTICLE HAVING THEREIN A SMOKE PASSAGE OF SUBSTANTIAL CROSS-SECTION OF A FILTER SECTION HAVING DISPERSED THERETHROUGH FAT PARTICLES ENCASED IN A PROTECTIVE COLLOID.
Claim 2
Dependent Claim
28 words
THE COMBINATION WITH A SMOKER''S ARTICLE HAVING THEREIN A SMOKE PASSAGE OF SUBSTANTIAL CROSS-SECTION OF A FILTER SECTION HAVING DISPERSED THERETHROUGH FAT PARTICLES ENCASED IN A PROTECTIVE COLLOID.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |