Lydall Performance Materials (US), Inc.

6 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

Nov 2029

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 Sep 26, 2027
The maintenance fee for High Temperature Thermo-Acoustic Barrier Material with Low Smoke and Odor (US 11,939,265) comes due Sep 26, 2027. Unpaid by Mar 27, 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 6 of 6

Patent	Title	Status	Expires	Confidence
US 8,579,299	Gasket Having Adhesive Element In force Term ends Nov 27, 2029 · High confidence	In force	Term ends Nov 27, 2029	High confidence
US 9,568,102	Press-in-Place Gaskets and Fabrication Methods In force Term ends Jan 11, 2034 · High confidence	In force	Term ends Jan 11, 2034	High confidence
US 9,486,833	Gasket with High Temperature Coating In force Term ends Apr 6, 2034 · High confidence	In force	Term ends Apr 6, 2034	High confidence
US 11,939,265	High Temperature Thermo-Acoustic Barrier Material with Low Smoke and Odor In force Ends no later than Apr 14, 2038 · Medium confidence	In force	Ends no later than Apr 14, 2038	Medium confidence
US 11,168,602	High Temperature Thermo-Acoustic Barrier Material with Low Smoke and Odor In force Term ends Dec 22, 2038 · High confidence	In force	Term ends Dec 22, 2038	High confidence
US 11,187,324	Gaskets with a Non-Compressible Core and One or More Compressible Layers In force Term ends Nov 11, 2039 · High confidence	In force	Term ends Nov 11, 2039	High confidence

Also on record, not counted in the 6: 4 lapsed for an unpaid fee · 4 ended at full term · 1 surrendered on reissue. 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.