Apparatus of chemical vapor deposition with a showerhead regulating injection velocity of reactive gases positively and method thereof

US 9,476,121 In force

Overview Sources & methods

Term ends Oct 19, 2027 · From the USPTO record

Computed 20-year base term

Named at grant Korea Institute of Industrial Technology · find this owner

Filed Sep 18, 2014 as application 14/489,730 · Granted Oct 25, 2016

Base term plus 245 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Oct 19, 2027

2007 2027

Clock starts
Feb 16, 2007

Term ends
Oct 19, 2027

Granted
Oct 25, 2016

base term patent term adjustment fee events Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

245

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

2 of 2

Maintenance fees paid

Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Feb 16, 2007, when the earliest non-provisional application in its chain was filed (this one was filed Sep 18, 2014); a parent in its chain could not be resolved (the next row)	Feb 16, 2027	High confidence
Continuity chain	A parent in the chain could not be resolved	dated from this application's own claim	Medium confidence
Patent term adjustment	+245 days, USPTO patent term adjustment record	Oct 19, 2027	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	2 of 2 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Oct 19, 2027	From the USPTO record

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Apparatus of chemical vapor deposition with a showerhead regulating injection velocity of reactive gases positively and method thereof

Term ends Oct 19, 2027 · From the USPTO record

20-year base term ends Feb 16, 2027

How we calculated this date

Sources