Masterflex, LLC

22 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Dec 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

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 Jan 4, 2027
The maintenance fee for Pinch clamp and mount (US 11,692,633) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
1 fee due Apr 3, 2027
The maintenance fee for Multi-roller peristaltic pump head (US 11,773,839) comes due Apr 3, 2027. Unpaid by Oct 4, 2027, it lapses early.
1 fee due Jun 19, 2027
The maintenance fee for Accurate volume dispensing using pump and flow sensor (US 11,846,279) comes due Jun 19, 2027. Unpaid by Dec 20, 2027, it lapses early.
1 fee due Jul 2, 2027
The maintenance fee for Fluid resistant display apparatus (US 11,859,608) comes due Jul 2, 2027. Unpaid by Jan 3, 2028, it lapses early.
2 fees due Sep 3 to 5, 2027 · next Sep 3

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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 7,980,835	Tube Retainer System for a Peristaltic Pump In force Term ends Dec 19, 2027 · High confidence	In force	Term ends Dec 19, 2027	High confidence
US 7,874,819	Marked Tube for a Peristaltic Pump In force Term ends Nov 15, 2029 · High confidence	In force	Term ends Nov 15, 2029	High confidence
US 8,052,399	Peristaltic Pump In force Term ends Jul 4, 2030 · High confidence	In force	Term ends Jul 4, 2030	High confidence
US 9,504,784	Peristaltic pump with multiple independent channels In force Term ends Sep 21, 2034 · High confidence	In force	Term ends Sep 21, 2034	High confidence
US D933,202	Fluid pump In force Term ends Oct 12, 2036 · From the USPTO record	In force	Term ends Oct 12, 2036	From the USPTO record
US D940,575	Pump controller In force Term ends Jan 11, 2037 · From the USPTO record	In force	Term ends Jan 11, 2037	From the USPTO record
US D951,302	Enclosed pump drive In force Term ends May 10, 2037 · From the USPTO record	In force	Term ends May 10, 2037	From the USPTO record
US D962,292	Enclosed pump In force Term ends Aug 30, 2037 · From the USPTO record	In force	Term ends Aug 30, 2037	From the USPTO record
US 10,578,096	Peristaltic Pumphead and Methods for Assembly Thereof In force Term ends Feb 11, 2038 · High confidence	In force	Term ends Feb 11, 2038	High confidence
US D1,021,074	Adapter housing for a peristaltic pump In force Term ends Apr 2, 2039 · From the USPTO record	In force	Term ends Apr 2, 2039	From the USPTO record

10 of 22 patents shown.

Pro members see all 22.

Pro members: see all 22 patents

Also on record, not counted in the 22: 3 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.

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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 no status recorded

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