US2954778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary filtration means for filter-type cigarettes
Assignee: Mac Farland Aveyard & Co
•
Filing: 1956-11-16
•
Granted: 1960-10-04
•
Expires: 1976-11-16
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Lebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:15
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/04; A24D3/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US269256A
Cited
US2511898A
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US1605059A
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US1554353A
Cited
DE696600C
Cited
CH210087A
Cited
GB639174A
Cited
US2544206A
Cited
US2686524A
Cited
FR1072925A
Cited
GB760727A
Cited
US2764513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |