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Patent US2916038A successfully refreshed from Google Patents.
US2916038A
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Tobacco smoke filter
Assignee: Akzo Nobel UK PLC
•
Filing: 1954-02-23
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Granted: 1959-12-08
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Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 Wade Worth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:48
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/06; A24D3/08; A24D3/02; Y; Y10; Y10S; Y10S55/00; Y10S55/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |