US3013891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco smoke filter material
Assignee: P Lorillard Co
•
Filing: 1957-09-18
•
Granted: 1961-12-19
•
Expires: 1977-09-18
Abstract
No abstract record available.
Inventors
- 👤 Block M Sabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:18
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0204; A24D3/0212
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A METHOD OF UNIFORMLY DISTRIBUTING FINELY-DIVIDED PARTICLES DEPOSITED NON-UNFORMLY AS A COATING ON THE TACKY SURFACE OF AN ELONGATED FILAMENT, WHICH COMPRISES AGITATING THE FILAMENT TO REDISTRIBUTE THE CONGLOMERATED AND UNADHERED PARTICLES ON THE UNCOATED TACKY SURFACE OF SAID FILAMENT, SIMULTANEOUSLY BODILY MOVING SAID FILAMENT TO SAID THE SAID PARTICLE REDISTRIBUTION, WHEREBY THE FILAMENT IS SUBSTANTIALLY UNOFORMLY COATED WITH THE PARTICLES, THEN MOVING SAID FILAMENT SUBSTANTIALLY VERTICALLY TO REMOVE ANY UNADHERED PARTICLES BY GRAVITY, AND DEFLECTING THE UNADHERED PARTICLES AWAY FROM THE FILAMENT.
Claim 2
Independent Claim
83 words
A METHOD OF UNIFORMLY DISTRIBUTING FINELY-DIVIDED PARTICLES DEPOSITED NON-UNFORMLY AS A COATING ON THE TACKY SURFACE OF AN ELONGATED FILAMENT, WHICH COMPRISES AGITATING THE FILAMENT TO REDISTRIBUTE THE CONGLOMERATED AND UNADHERED PARTICLES ON THE UNCOATED TACKY SURFACE OF SAID FILAMENT, SIMULTANEOUSLY BODILY MOVING SAID FILAMENT TO SAID THE SAID PARTICLE REDISTRIBUTION, WHEREBY THE FILAMENT IS SUBSTANTIALLY UNOFORMLY COATED WITH THE PARTICLES, THEN MOVING SAID FILAMENT SUBSTANTIALLY VERTICALLY TO REMOVE ANY UNADHERED PARTICLES BY GRAVITY, AND DEFLECTING THE UNADHERED PARTICLES AWAY FROM THE FILAMENT.
References Cited (Backward Citations)
US296428A
Cited
GB312412A
Cited
US2034008A
Cited
US2371605A
Cited
US2340897A
Cited
US2603575A
Cited
US2655895A
Cited
US2774680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |