Fluidmaster, Inc.
3 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 2 name spellings.
7
Ending by 2030
Mar 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Dec 11, 2026The maintenance fee for Flow Diverted with Antisipohon (US 10,316,502) comes due Dec 11, 2026. Unpaid by Jun 11, 2027, it lapses early.
- 1 fee due Jan 16, 2027The maintenance fee for Toilet hydraulic system (US 10,352,030) comes due Jan 16, 2027. Unpaid by Jul 16, 2027, it lapses early.
- 1 fee due Feb 1, 2027The maintenance fee for Balanced Activation Force and Bistable Valve System and Method (US 11,713,817) comes due Feb 1, 2027. Unpaid by Aug 2, 2027, it lapses early.
- 2 fees due Mar 5 to 17, 2027 · next Mar 5
- 1 fee due Aug 11, 2027The maintenance fee for Flow regulator (US 10,557,560) comes due Aug 11, 2027. Unpaid by Feb 11, 2028, it lapses early.
- 2 fees due Sep 3 to 26, 2027 · next Sep 3
- 2 fees due Oct 2 to 5, 2027 · next Oct 2
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 1 term has ended since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D678,982 | Dual flush toilet mechanism In force · From the USPTO record | In force | From the USPTO record | |
| US D707,334 | Hose connector In force · From the USPTO record | In force | From the USPTO record | |
| US D716,419 | Hose connector In force · From the USPTO record | In force | From the USPTO record | |
| US 7,950,412 | Non-removable refill restrictor apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 7,909,054 | Shank Assembly for a Fill Valve In force · High confidence | In force | High confidence | |
| US 8,250,681 | Variable buoyancy setting flapper In force · From the USPTO record | In force | From the USPTO record | |
| US 8,104,103 | Toilet flapper flush valve assembly In force · From the USPTO record | In force | From the USPTO record | |
| US 8,615,822 | Air pressure activated toilet flushing system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,303,800 | Torque limiting fluid connector system In force · From the USPTO record | In force | From the USPTO record | |
| US 9,348,344 | Constant flow rate pressure regulator In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 42: 3 patents in force now held by others · 11 lapsed for an unpaid fee · 52 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
2 pending · 2 abandoned · 16 no status recorded