1501367 Alberta Ltd.

5 patents currently held · Updated Nov 15, 2026

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

Ending by 2030

Sep 2030

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 Jul 2, 2027
The maintenance fee for Fluid treatment separator and a system and method of treating fluid (US 11,857,893) comes due Jul 2, 2027. Unpaid by Jan 3, 2028, it lapses early.
1 fee due Nov 10, 2027
The maintenance fee for Method and apparatus for treatment of fluids (US 9,334,175) comes due Nov 10, 2027. Unpaid by May 10, 2028, it lapses early.

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.

Showing 1 to 5 of 5

Patent	Title	Status	Expires	Confidence
US 8,137,566	Recovery of tailings ponds In force Term ends Sep 19, 2030 · From the USPTO record	In force	Term ends Sep 19, 2030	From the USPTO record
US 9,334,175	Method and apparatus for treatment of fluids In force Term ends Jun 19, 2033 · From the USPTO record	In force	Term ends Jun 19, 2033	From the USPTO record
US 10,654,727	Method and system for de-oiling a feed of oil and water In force Term ends Jul 25, 2034 · From the USPTO record	In force	Term ends Jul 25, 2034	From the USPTO record
US 10,239,768	Method and System for De-Oiling a Feed of Oil and Water In force Term ends Dec 3, 2034 · High confidence	In force	Term ends Dec 3, 2034	High confidence
US 11,857,893	Fluid treatment separator and a system and method of treating fluid In force Term ends Sep 24, 2041 · From the USPTO record	In force	Term ends Sep 24, 2041	From the USPTO record

Also on record, not counted in the 5: 1 lapsed for an unpaid fee · 1 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.

Export every term end as CSV · Pro

Published applications

Every application published under this name has become a patent.