Tetra Tech, Inc.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
May 2035
Next term end
When these terms end
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 Jan 9 to 23, 2027 · next Jan 9
- 1 fee due Feb 20, 2027The maintenance fee for Protective shroud for enveloping light from a light emitter for mapping of a railway track (US 10,384,697) comes due Feb 20, 2027. Unpaid by Aug 20, 2027, it lapses early.
- 2 fees due Apr 8 to 10, 2027 · next Apr 8
- 2 fees due Sep 3 to 5, 2027 · next Sep 3
- 4 fees due Oct 7 to 21, 2027 · next Oct 7
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 9,618,335 | Light emission power control apparatus and method In force · From the USPTO record | In force | From the USPTO record | |
| US 9,849,895 | Sensor synchronization apparatus and method In force · From the USPTO record | In force | From the USPTO record | |
| US 9,860,962 | Light emission power control apparatus and method In force · From the USPTO record | In force | From the USPTO record | |
| US 9,950,720 | Light emission power control apparatus and method In force · From the USPTO record | In force | From the USPTO record | |
| US 10,322,734 | Sensor synchronization apparatus and method In force · From the USPTO record | In force | From the USPTO record | |
| US 10,349,491 | Light emission power control apparatus and method In force · From the USPTO record | In force | From the USPTO record | |
| US 10,384,697 | Protective shroud for enveloping light from a light emitter for mapping of a railway track In force · From the USPTO record | In force | From the USPTO record | |
| US 10,582,187 | 3D track assessment method In force · From the USPTO record | In force | From the USPTO record | |
| US 10,616,556 | 3D track assessment method In force · From the USPTO record | In force | From the USPTO record | |
| US 10,616,557 | 3D track assessment method In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 35: 2 lapsed for an unpaid fee · 5 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.
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.
6 no status recorded