Techno Gulf Dive Services
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Jul 2031
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.
- 1 fee due Dec 11, 2026The maintenance fee for Passive Formic Acid Fuel Cell (US 10,320,021) comes due Dec 11, 2026. Unpaid by Jun 11, 2027, it lapses early.
- 1 fee due Apr 27, 2027The maintenance fee for Efficient battery management system (US 9,172,260) comes due Apr 27, 2027. Unpaid by Oct 27, 2027, it lapses early.
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 3 of 3
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,515,333 | Flow management in fuel cell configurations In force (reinstated) · High confidence | In force (reinstated) | High confidence | |
| US 9,172,260 | Efficient battery management system In force · From the USPTO record | In force | From the USPTO record | |
| US 10,320,021 | Passive Formic Acid Fuel Cell In force (reinstated) · High confidence | In force (reinstated) | High confidence |
Also on record, not counted in the 3: 3 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.