Patent US4177966A successfully refreshed from Google Patents.
US3333741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined dispensing closure and air filter for liquid-containers
Assignee: EBCO Manufacturing Co
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Filing: 1965-12-15
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Granted: 1967-08-01
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Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Richard J Radcliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:39
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/0042; B67D1/0078; B67D1/0079
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A VENTED, DISPENSING CLOSURE FOR A LIQUID-CONTAINER COMPRISING A GENERALLY HOLLOW, TAPERED PLUG MEMBER FOR INSERTION WITHIN AN OPEN MOUTH OF A CONTAINER, SAID PLUG MEMBER INCLUDING AN INNER, CENTRALLY DISPOSED, AXIALLY EXTENDING TUBULAR WALL DEFINING A LIQUID-CONDUCTING PASSAGE EXTENDING CENTRALLY AND AXIALLY OF SAID PLUG MEMBER, AN OUTER TUBULAR WALL DISPOSED IN RADIALLY OUTWARDLY SPACED RELATION TO SAID INNER WALL AND DEFINING THEREWITH AN ANNULAR FILTER-RECEIVING CHAMBER, AND A TRANSVERSE WALL INTERCONNECTING SAID INNER AND OUTER TUBULAR WALLS AND FORMED WITH AN OPENING THROUGH WHICH AIR MAY PASS, SAID FILTER-RECEIVING CHAMBER BEING OPEN AT
Claim 2
Dependent Claim
95 words
A VENTED, DISPENSING CLOSURE FOR A LIQUID-CONTAINER COMPRISING A GENERALLY HOLLOW, TAPERED PLUG MEMBER FOR INSERTION WITHIN AN OPEN MOUTH OF A CONTAINER, SAID PLUG MEMBER INCLUDING AN INNER, CENTRALLY DISPOSED, AXIALLY EXTENDING TUBULAR WALL DEFINING A LIQUID-CONDUCTING PASSAGE EXTENDING CENTRALLY AND AXIALLY OF SAID PLUG MEMBER, AN OUTER TUBULAR WALL DISPOSED IN RADIALLY OUTWARDLY SPACED RELATION TO SAID INNER WALL AND DEFINING THEREWITH AN ANNULAR FILTER-RECEIVING CHAMBER, AND A TRANSVERSE WALL INTERCONNECTING SAID INNER AND OUTER TUBULAR WALLS AND FORMED WITH AN OPENING THROUGH WHICH AIR MAY PASS, SAID FILTER-RECEIVING CHAMBER BEING OPEN AT
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |