Guill Tool & Engineering Co., Inc.

42 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.

Ending by 2030

Jan 2028

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.

2 fees due Feb 8, 2027
2 fees due Mar 3 to 10, 2027 · next Mar 3
1 fee due Apr 15, 2027
The maintenance fee for Extrudable Polymer Composites with Membrane Barrier Properties (US 10,442,127) comes due Apr 15, 2027. Unpaid by Oct 15, 2027, it lapses early.
2 fees due May 19 to 26, 2027 · next May 19
2 fees due Jun 5 to 26, 2027 · next Jun 5
1 fee due Sep 10, 2027
The maintenance fee for Extrudable Oriented Polymer Composites (US 10,583,601) comes due Sep 10, 2027. Unpaid by Mar 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.

Patent	Title	Status	Expires	Confidence
US 7,690,908	Method and apparatus for forming high strength products In force Term ends Jan 27, 2028 · From the USPTO record	In force	Term ends Jan 27, 2028	From the USPTO record
US 8,235,701	Adjustment mechanism for extrusion die In force Term ends Jul 26, 2030 · From the USPTO record	In force	Term ends Jul 26, 2030	From the USPTO record
US 10,195,114	Microlayer Coextrusion to Create a Time-Release Drug Substance Delivery Product In force Term ends Dec 23, 2031 · High confidence	In force	Term ends Dec 23, 2031	High confidence
US 10,695,267	Microlayer Coextrusion to Create a Time-Release Drug Substance Delivery Product In force Term ends Dec 23, 2031 · High confidence	In force	Term ends Dec 23, 2031	High confidence
US 11,833,726	Micro-layer tubular extrusion products In force Ends no later than Dec 23, 2031 · From the USPTO record	In force	Ends no later than Dec 23, 2031	From the USPTO record
US 11,850,212	Microlayer Coextrusion to Create a Time-Release Drug Substance Delivery Product In force Term ends Dec 23, 2031 · High confidence	In force	Term ends Dec 23, 2031	High confidence
US 12,403,641	Method and apparatus for forming high strength products In force Term ends Dec 23, 2031 · From the USPTO record	In force	Term ends Dec 23, 2031	From the USPTO record
US 10,479,045	Microlayer coextrusion of electrical end products In force Term ends Jun 12, 2033 · From the USPTO record	In force	Term ends Jun 12, 2033	From the USPTO record
US 11,034,125	Microlayer coextrusion of electrical end products In force Term ends Jun 12, 2033 · From the USPTO record	In force	Term ends Jun 12, 2033	From the USPTO record
US 11,718,061	Microlayer coextrusion of electrical end products In force Ends no later than Jun 12, 2033 · From the USPTO record	In force	Ends no later than Jun 12, 2033	From the USPTO record

10 of 42 patents shown.

Pro members see all 42.

Pro members: see all 42 patents

Also on record, not counted in the 42: 1 lapsed for an unpaid fee · 9 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.

3 pending · 2 abandoned · 4 no status recorded

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