The Patent Finder

Chemplex Industries, 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.

Recorded under 2 name spellings.

3
Ending by 2030
May 2027
Next term end

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

No maintenance fee falls due on this company's record before Nov 15, 2027.

Recent changes

  • 2 terms have ended since Aug 17, 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.

Showing 1 to 6 of 6

PatentTitleStatus Expires Confidence
US 7,721,408Method and apparatus for covering a container
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,981,380Sample cup with thin-film detachment mechanism
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,404,197Sample cup for use in spectrochemical analysis
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,565,375Protection device for X-ray instrumentation
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,829,446Sample cup and method for mounting a thin film of material across a sample cup
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,979,973Method and apparatus for covering a container
In force
Ended no later than Sep 14, 2026 · From the USPTO record
In forceEnded no later than Sep 14, 2026From the USPTO record
Also on record, not counted in the 6: 14 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.
The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited