A push up fluid dispenser having a fluid storage container and a vertically oriented plunger carried in the container, with the plunger being manually pushable upward for dispensing fluid from the container. The container includes a valve cylinder mounted in the container and having an upper opening and an interior passage for slidingly receiving the plunger, and the plunger having a fluid flow passage therein providing a flow path from the cylinder interior to the exterior of the dispenser. A first one-way valve is disposed for control of fluid flow into the cylinder interior through an upper opening and a second one-way valve is disposed for control of fluid flow from the cylinder interior into the plunger passage, with a spring between the cylinder and plunger urging the plunger downward.
Please note there is up to 60 days of latency in this Status indicator for certain status conditions. You can obtain up-to-date Status indicator readings by ordering PAIR for the file.
An application with the status "Published" (which means it is pending) may be recently abandoned, but not yet updated to reflect its abandoned status. However, an application filed less than one year ago is unlikely to be abandoned.
A patent with the status "Granted" may be recently expired, but not yet updated to reflect its expired status. However, it is highly unlikely a patent less than 3.5 years old would be expired.
An application with the status "Abandoned" is almost always current, but there is a small chance it was recently revived and the status not yet updated.
This priority date is an estimated earliest
priority date and is purely an estimation. This date should not be
taken as legal conclusion. No representations are made as to the
accuracy of the date listed. Please consult a legal professional
before relying on this date.