US2900988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tobacco smoke filter elements
Assignee: Eastman Kodak Co
•
Filing: 1954-06-09
•
Granted: 1959-08-25
•
Expires: 1974-06-09
Abstract
No abstract record available.
Inventors
- 👤 Robert T Crawford
- 👤 Joel B Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:21
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/224; A; A24; A24D; A24D3/00; A24D3/02; A24D3/0204; A24D3/0212; A24D3/022; A24D3/0229; A24D3/0237; A24D3/06; A24D3/14; B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/18; D02; D02G; D02G1/00; D02G1/12; D06M13/144; D06M7/00; D06M2200/00; D06M2200/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2967; Y10T428/2969; Y10T428/298
Claims Analysis
Total Claims: 0
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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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |