US2805671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol filters
Assignee: Liggett Group LLC
•
Filing: 1953-10-07
•
Granted: 1957-09-10
•
Expires: 1973-10-07
Abstract
No abstract record available.
Inventors
- 👤 Edward J Hackney
- 👤 Charles D Faucette
- 👤 Frederick R Darkis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:25
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0204; A24D3/0212; B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/18; B01J; B01J39/00; B01J39/08; B01J39/14; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092
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) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |