Ausco, Inc.

11 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 Jun 1, 2027
The maintenance fee for Pressure Relief Valve with Singular Body (US 9,200,717) comes due Jun 1, 2027. Unpaid by Dec 1, 2027, it lapses early.
1 fee due Oct 16, 2027
The maintenance fee for Zero leak pilot operated valve having two seats (US 11,957,089) comes due Oct 16, 2027. Unpaid by Apr 17, 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.

Patent	Title	Status	Expires	Confidence
US 7,891,350	Self-contained chargeable gas supply system for pneumatic store ejection utilizing a removable, replaceable and on-board rechargeable gas storage vessel In force Term ends Dec 6, 2027 · From the USPTO record	In force	Term ends Dec 6, 2027	From the USPTO record
US 9,200,717	Pressure Relief Valve with Singular Body In force Term ends Jan 21, 2028 · Medium confidence	In force	Term ends Jan 21, 2028	Medium confidence
US 9,371,926	Pressure Relief Valve with Singular Body In force Term ends Jan 21, 2028 · Medium confidence	In force	Term ends Jan 21, 2028	Medium confidence
US 11,957,089	Zero leak pilot operated valve having two seats In force Ends no later than Mar 6, 2029 · From the USPTO record	In force	Ends no later than Mar 6, 2029	From the USPTO record
US 7,913,715	Relief Valve Including a Check Valve in a Damping Chamber In force Term ends May 30, 2029 · High confidence	In force	Term ends May 30, 2029	High confidence
US 7,967,039	Seal assembly for a source of pressurized fluid In force Term ends Jun 1, 2029 · From the USPTO record	In force	Term ends Jun 1, 2029	From the USPTO record
US 8,397,748	Check Valve Having Two Seats In force Term ends Jun 6, 2030 · High confidence	In force	Term ends Jun 6, 2030	High confidence
US 8,631,819	Gas supply system for pneumatic store ejection utilizing a removable, replaceable and on-board rechargeable gas storage vessel In force Term ends Aug 21, 2030 · From the USPTO record	In force	Term ends Aug 21, 2030	From the USPTO record
US 8,205,630	Low pressure relief valve and method of manufacturing same In force Term ends Feb 28, 2031 · From the USPTO record	In force	Term ends Feb 28, 2031	From the USPTO record
US 10,813,296	Zero leak pilot operated valve having two seats In force Term ends Feb 23, 2033 · From the USPTO record	In force	Term ends Feb 23, 2033	From the USPTO record

10 of 11 patents shown.

Pro members see all 11.

Pro members: see all 11 patents

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.

1 pending

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