Method and system for providing dynamic orthodontic assessment and treatment profiles

US 8,874,452 Grace period ended

Overview Sources & methods

Term ends Feb 11, 2027 · Low confidence

Computed 20-year base term

Grace period ended Oct 28, 2026 · no payment on record as of the Nov 10, 2026 fee file · lapse expected

Held by Align Technology, Inc.

Filed Oct 13, 2006 as application 11/549,636 · Granted Oct 28, 2014

Base term plus 1080 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Feb 11, 2027

2004 2027

Clock starts
Feb 27, 2004

Term ends
Feb 11, 2027

Granted
Oct 28, 2014

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

1,080

Days of term adjustment

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

No effect

Terminal disclaimer

Resolved from the filed document, referencing US 7,904,308, US 8,874,452, to Feb 11, 2027. The term already ends on or before that date, so the cap shortened nothing.

2 of 3

Maintenance fees paid

Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. 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 27, 2004, when the earliest non-provisional application in its chain was filed (this one was filed Oct 13, 2006); a parent in its chain could not be resolved (the next row)	Feb 27, 2024	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	+1080 days, USPTO patent term adjustment record	Feb 11, 2027	High confidence
Terminal disclaimer cap	Disclaimer resolved from the filed document (refs US 7,904,308, US 8,874,452)	resolves to Feb 11, 2027, no earlier than this term, so no change	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	The grace period ended with no payment on record in the fee file	grace period ended Oct 28, 2026	Low confidence
Computed term end	The steps above, in order	Feb 11, 2027	Low confidence

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.

Method and system for providing dynamic orthodontic assessment and treatment profiles

Term ends Feb 11, 2027 · Low confidence

20-year base term ended Feb 27, 2024

How we calculated this date

Sources