US3343547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cigarette filter
Assignee: Individual
•
Filing: 1964-09-22
•
Granted: 1967-09-26
•
Expires: 1984-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jr George A Gill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:16
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/04; A24D3/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A FILTER OF THE CHARACTER DESCRIBED COMPRISING, A PAIR OF AXIALLY SPACED CYLINDRICAL MEMBERS, A MEDIAL PORTION INTERCONNECTING SAID CYLINDRICAL MEMBERS, AN AXIALLY EXTENDING CONICAL BORE FORMED IN ONE OF SAID CYLINDRICAL MEMBERS AND EXTENDING INTO SAID MEDIAL PORTION, AN AXIALLY EXTENDING ORIFICE FORMED IN SAID MEDIAL PORTION, ONE END OF SAID ORIFICE COMMUNICATING WITH THE APEX OF SAID CONICAL BORE, A TRANSVERSELY EXTENDING SLOT FORMED IN THE MEDIAL PORTION AND COMMUNICATING WITH THE OPPO-
Claim 2
Dependent Claim
75 words
A FILTER OF THE CHARACTER DESCRIBED COMPRISING, A PAIR OF AXIALLY SPACED CYLINDRICAL MEMBERS, A MEDIAL PORTION INTERCONNECTING SAID CYLINDRICAL MEMBERS, AN AXIALLY EXTENDING CONICAL BORE FORMED IN ONE OF SAID CYLINDRICAL MEMBERS AND EXTENDING INTO SAID MEDIAL PORTION, AN AXIALLY EXTENDING ORIFICE FORMED IN SAID MEDIAL PORTION, ONE END OF SAID ORIFICE COMMUNICATING WITH THE APEX OF SAID CONICAL BORE, A TRANSVERSELY EXTENDING SLOT FORMED IN THE MEDIAL PORTION AND COMMUNICATING WITH THE OPPO-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |