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US3079930A
Expired / Lapsed
US
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Process and apparatus for manufacturing filters
Assignee: Eastman Kodak Co
•
Filing: 1958-09-22
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Granted: 1963-03-05
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Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Phara L Cobb
- 👤 Melvin R Hargrave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:17
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0204; A24D3/0212; A24D3/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A SELF-SUPPORTING TOBACCO SMOKE FILTER ELEMENT COMPRISED OF A CORE OF ALIGNED CRIMPED CELLULOSE ACETATE YARNTYPE FILAMENTS ARRANGED IN SUBSTANTIALLY PARALLEL RELATIONSHIP AND GENERALLY PARALLEL TO THE AXIS OF THE FILTER, AND AN
Claim 2
Dependent Claim
33 words
A SELF-SUPPORTING TOBACCO SMOKE FILTER ELEMENT COMPRISED OF A CORE OF ALIGNED CRIMPED CELLULOSE ACETATE YARNTYPE FILAMENTS ARRANGED IN SUBSTANTIALLY PARALLEL RELATIONSHIP AND GENERALLY PARALLEL TO THE AXIS OF THE FILTER, AND AN
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |