US3038478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing rigid tobacco smoke filters
Assignee: Eastman Kodak Co
•
Filing: 1960-05-23
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Granted: 1962-06-12
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Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 George P Touey
- 👤 Ii Robert C Mumpower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:14
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/08; D; D01; D01F; D01F6/00; D01F6/44; D01F6/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A RIGID TOBACCO SMOKE FILTER CONSISTING OF A BUNDLE OF CRIMPED CONTINUOUS FILAMENTS OF A COMPOSITION COMPRISING A POLY-A-OLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPDROPYLENE, A PLATICIZER-SOLUABLE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYSTYRENE, POLYMETHYL METHACRYLATE, POLYNOPINENE, POLYVINYL ACETATE AND POLYVINYL BUTYRAL, AND AN ORGANIC PLASTICIZER WHICH HAS PLASTICIZED SAID POLYMER.
Claim 2
Dependent Claim
55 words
A RIGID TOBACCO SMOKE FILTER CONSISTING OF A BUNDLE OF CRIMPED CONTINUOUS FILAMENTS OF A COMPOSITION COMPRISING A POLY-A-OLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPDROPYLENE, A PLATICIZER-SOLUABLE POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYSTYRENE, POLYMETHYL METHACRYLATE, POLYNOPINENE, POLYVINYL ACETATE AND POLYVINYL BUTYRAL, AND AN ORGANIC PLASTICIZER WHICH HAS PLASTICIZED SAID POLYMER.
References Cited (Backward Citations)
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Cited
US2707308A
Cited
US2794239A
Cited
US2765315A
Cited
US2881771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |