Tround Inc.

9 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

Oct 2040

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 Apr 3, 2027
The maintenance fee for Movable chair provided with cable protecting means (US 11,771,229) comes due Apr 3, 2027. Unpaid by Oct 4, 2027, it lapses early.
2 fees due May 14, 2027
1 fee due Jun 12, 2027
The maintenance fee for Chair including multi-channel sound system (US 11,839,311) comes due Jun 12, 2027. Unpaid by Dec 13, 2027, it lapses early.
1 fee due Jul 23, 2027
The maintenance fee for Wireless speaker chair (US 11,882,419) comes due Jul 23, 2027. Unpaid by Jan 24, 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 9 of 9

Patent	Title	Status	Expires	Confidence
US 11,771,229	Movable chair provided with cable protecting means In force Term ends Oct 26, 2040 · From the USPTO record	In force	Term ends Oct 26, 2040	From the USPTO record
US 11,812,872	Member for chair for implementing multi-channel sound system and chair including the member In force Term ends Jun 7, 2041 · From the USPTO record	In force	Term ends Jun 7, 2041	From the USPTO record
US 11,812,873	Chair including multi-channel sound system In force Term ends Aug 9, 2041 · From the USPTO record	In force	Term ends Aug 9, 2041	From the USPTO record
US 11,882,419	Wireless speaker chair In force Term ends Aug 9, 2041 · From the USPTO record	In force	Term ends Aug 9, 2041	From the USPTO record
US 11,839,311	Chair including multi-channel sound system In force Term ends Aug 20, 2041 · From the USPTO record	In force	Term ends Aug 20, 2041	From the USPTO record
US 12,042,061	Chair including multi-channel sound system In force Term ends Dec 21, 2041 · From the USPTO record	In force	Term ends Dec 21, 2041	From the USPTO record
US 11,998,121	Member for chair including multi-channel sound system and chair including the member In force Term ends Oct 3, 2042 · From the USPTO record	In force	Term ends Oct 3, 2042	From the USPTO record
US 12,082,712	Chair equipped with multi-channel sound system In force Term ends Dec 29, 2042 · From the USPTO record	In force	Term ends Dec 29, 2042	From the USPTO record
US 12,440,030	Bottom base for preventing chair fall down and chair comprising the same In force Term ends Aug 3, 2043 · From the USPTO record	In force	Term ends Aug 3, 2043	From the USPTO record

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.