3SI Security Systems, Inc.

8 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

Mar 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.

1 fee due Nov 7, 2027
The maintenance fee for Security tracking device with zone-based alert suppression (US 11,978,329) comes due Nov 7, 2027. Unpaid by May 8, 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 8 of 8

Patent	Title	Status	Expires	Confidence
US 7,656,292	Flexible Anti-Theft Pack for Tracking and Location In force Term ends Mar 23, 2028 · High confidence	In force	Term ends Mar 23, 2028	High confidence
US 8,035,510	Asset Recovery Device Installation and Alert System In force Term ends Mar 24, 2029 · High confidence	In force	Term ends Mar 24, 2029	High confidence
US 10,140,830	Asset tracking device configured to selectively retain information during loss of communication In force Ends no later than May 22, 2035 · From the USPTO record	In force	Ends no later than May 22, 2035	From the USPTO record
US 9,786,146	Asset tracking device configured to selectively retain information during loss of communication In force Term ends Nov 17, 2035 · From the USPTO record	In force	Term ends Nov 17, 2035	From the USPTO record
US 10,812,940	Flexible anti-theft pack for tracking and location In force Term ends Jul 19, 2039 · From the USPTO record	In force	Term ends Jul 19, 2039	From the USPTO record
US 11,978,329	Security tracking device with zone-based alert suppression In force Ends no later than May 20, 2041 · From the USPTO record	In force	Ends no later than May 20, 2041	From the USPTO record
US 11,620,889	Security Tracking Device With Zone-Based Alert Suppression In force Term ends Jul 30, 2041 · High confidence	In force	Term ends Jul 30, 2041	High confidence
US 11,541,174	Clinical assessment of an intravenous catheter site In force Term ends Nov 2, 2041 · From the USPTO record	In force	Term ends Nov 2, 2041	From the USPTO record

Also on record, not counted in the 8: 3 lapsed for an unpaid fee · 24 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.

Export every term end as CSV · Pro

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.

1 no status recorded

List them