D & D Technologies Pty Ltd.

42 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

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 Sep 24, 2027
The maintenance fee for Sensor configuration for a latch assembly (US 10,598,741) comes due Sep 24, 2027. Unpaid by Mar 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.

Patent	Title	Status	Expires	Confidence
US D672,631	Striker for latch In force Term ends Dec 18, 2026 · From the USPTO record	In force	Term ends Dec 18, 2026	From the USPTO record
US D673,024	Hinge In force Term ends Dec 25, 2026 · From the USPTO record	In force	Term ends Dec 25, 2026	From the USPTO record
US D675,080	Handle In force Term ends Jan 29, 2027 · From the USPTO record	In force	Term ends Jan 29, 2027	From the USPTO record
US 8,966,947	Latches for Gates and Doors In force Term ends Jan 30, 2027 · Medium confidence	In force	Term ends Jan 30, 2027	Medium confidence
US 9,003,842	Latches for Gates and Doors In force Term ends Jan 30, 2027 · Medium confidence	In force	Term ends Jan 30, 2027	Medium confidence
US 9,476,228	Latches for gates and doors In force Ends no later than Jan 30, 2027 · From the USPTO record	In force	Ends no later than Jan 30, 2027	From the USPTO record
US 9,771,740	Latches for gates and doors In force Ends no later than Jan 30, 2027 · From the USPTO record	In force	Ends no later than Jan 30, 2027	From the USPTO record
US 8,127,578	Locking gate latches In force Term ends May 21, 2029 · From the USPTO record	In force	Term ends May 21, 2029	From the USPTO record
US D742,721	Bracket for a hydraulic gate hinge and closer In force Term ends Nov 10, 2029 · From the USPTO record	In force	Term ends Nov 10, 2029	From the USPTO record
US 8,308,205	Toggle latch In force Term ends Mar 8, 2030 · From the USPTO record	In force	Term ends Mar 8, 2030	From the USPTO record

10 of 42 patents shown.

Pro members see all 42.

Pro members: see all 42 patents

Also on record, not counted in the 42: 16 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