US Patent No: 6,336,571
Number of patents in Portfolio can not be more than 2000
Device for packaging a liquid to be dispensed drop by drop
Stats
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Jan 8, 2002
Issued date -
May 3, 2000
filing date -
09/530,650
serial no -
In Force
status
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Abstract
The invention concerns a device comprising a flask (1) with variable internal volume having a rigid neck (5) wherein is arranged the body (3) of a dispensing head (2) ending in a conduit (41) discharging the liquid and containing a microporous pad (6) for generating a head loss regulating the liquid flow pushed therethrough into a distribution chamber (31) communicating with said conduit. The pad is advantageously made of a material inert with respect to the liquid and combined with an antibacterial filtering element (9) preventing outside air from entering the flask. It evenly occupies the body (3) over the whole cross-section of the liquid passage.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,634,023 Container | 16 | 1985 | |
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| 5,105,993 Disposable medical dispenser with a filtering dispenser nozzle | 39 | 1989 | |
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| 5,310,085 Method and packaging for preserving and dispensing portions of a sterile liquid | 10 | 1992 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 8, 2013 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |