VT Idirect, Inc.

12 patents currently held · Updated Nov 14, 2026

10 more in force are now held by other companies

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

Recorded under 2 name spellings.

Recorded as renamed to ST Engineering Idirect, Inc. (2021)

Ending by 2030

Dec 2026

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 Jan 2, 2027
The maintenance fee for Apparatuses and Methodologies for Vibration Effects Correction in Oscillators (US 10,340,921) comes due Jan 2, 2027. Unpaid by Jul 2, 2027, it lapses early.
1 fee due Aug 4, 2027
The maintenance fee for Apparatuses and Methodologies for Vibration Effects Correction in Oscillators (US 10,554,210) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

2 terms have ended since Aug 16, 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.

Patent	Title	Status	Expires	Confidence
US 7,493,081	Virtual network operator system, method and apparatus In force Term ends Dec 9, 2026 · From the USPTO record	In force	Term ends Dec 9, 2026	From the USPTO record
US 9,912,606	Apparatus and method to secure acquisition and contention burst activity in a communication network In force Ends no later than Jun 25, 2030 · From the USPTO record	In force	Ends no later than Jun 25, 2030	From the USPTO record
US 9,559,979	Apparatus and method to secure acquisition and contention burst activity in a communication network In force Term ends Jan 11, 2031 · From the USPTO record	In force	Term ends Jan 11, 2031	From the USPTO record
US 8,428,209	System, apparatus, and method of frequency offset estimation and correction for mobile remotes in a communication network In force Term ends Nov 18, 2031 · From the USPTO record	In force	Term ends Nov 18, 2031	From the USPTO record
US 9,614,558	Apparatus and method for phase unwrapping of a burst signal In force Term ends Mar 25, 2036 · From the USPTO record	In force	Term ends Mar 25, 2036	From the USPTO record
US 9,621,204	Apparatus and method for burst signal detection In force (reinstated) Term ends Mar 25, 2036 · From the USPTO record	In force (reinstated)	Term ends Mar 25, 2036	From the USPTO record
US 9,621,205	Apparatus and method for frequency estimation ambiguity removal of a burst signal In force Term ends Mar 25, 2036 · From the USPTO record	In force	Term ends Mar 25, 2036	From the USPTO record
US 10,554,210	Apparatuses and Methodologies for Vibration Effects Correction in Oscillators In force Term ends Nov 29, 2036 · High confidence	In force	Term ends Nov 29, 2036	High confidence
US 10,340,921	Apparatuses and Methodologies for Vibration Effects Correction in Oscillators In force Term ends May 21, 2037 · High confidence	In force	Term ends May 21, 2037	High confidence
US 10,700,770	System, Apparatus, and Method for Optimal Modcod Selection In force Term ends Aug 3, 2037 · High confidence	In force	Term ends Aug 3, 2037	High confidence

10 of 12 patents shown.

Pro members see all 12.

Pro members: see all 12 patents

Also on record, not counted in the 12: 10 patents in force now held by others · 9 lapsed for an unpaid fee · 8 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

Every application published under this name has become a patent.