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Food Safety Detection Device and Manufacturing Method for the Same

US 9,689,854 In force, term unresolved
OverviewFamilyAssignmentsSources & methods

Term ends no later than Apr 28, 2034 · Medium confidence

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Filed Oct 27, 2014 as application 14/524,617 · Granted Jun 27, 2017
Base term plus 284 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2013 2034
Clock starts
Jul 18, 2013
Ends no later than
Apr 28, 2034
Granted
Jun 27, 2017
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
284
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
3
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term runs 284 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 2 of 3 maintenance fees are paid so far. Confidence: Medium. from the record

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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jul 18, 2013, when application 13/945,237, the earliest non-provisional in its chain, was filed (this one was filed Oct 27, 2014)Jul 18, 2033High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+284 days, USPTO patent term adjustment recordApr 28, 2034High confidence
Terminal disclaimer capDisclaimer on file (approved), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Apr 28, 2034Medium confidence

This family

US 9,063,128In force
no later than Sep 2033
no later than Sep 2033
US 9,689,854this patent
no later than Apr 2034
no later than Apr 2034
US 9,612,203Lapsed on the fee record
Apr 2025
Apr 2025
The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
RecordedAssignorAssigneeConveyance
Nov 3, 2014
Reel 34092, frame 389
Kuan, Chen-meng; York, Roger L.; Langer, Robert S.; Cheng, Chao-minNational Tsing Hua UniversityAssignment of Assignor's Interest

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.

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