The Patent Finder
US

Sliding Mechanism for Opening and Closing of Cellular Phone

US 7,869,844 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Laird Technologies Korea Yh, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends May 27, 2027 · High confidence

Filed Nov 9, 2007 as application 11/596,215 · Granted Jan 11, 2011
Base term plus 619 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2005 2027
Clock starts
Sep 15, 2005
Term ends
May 27, 2027
Granted
Jan 11, 2011
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
619
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
2
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 619 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. 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 Sep 15, 2005, when application PCT/KR2005/003075, the earliest non-provisional in its chain, was filed (this one was filed Nov 9, 2007)Sep 15, 2025High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+619 days, USPTO patent term adjustment recordMay 27, 2027High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderMay 27, 2027High confidence

This family

US 7,869,844this patent
May 2027
May 2027
1 of 2 applications in this family shown, earliest filings first. 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 29, 2006
Reel 18581, frame 498
Lee, Jun-hong; Park, Chun SooM2SYS Co., Ltd.Assignment of Assignor's Interest
Jun 3, 2008
Reel 21035, frame 125
M2SYS Co., Ltd.Laird Technologies Map Co., Ltd.Change of Name
Sep 3, 2009
Reel 23192, frame 293
Laird Technologies Map Co., Ltd.Laird Technologies Korea YhChange of Name
May 27, 2010
Reel 24449, frame 578
Yoon, Hyung-kyu; Kim, Tai-hyunLaird Technologies Korea YhAssignment of Assignor's Interest
Aug 8, 2013
Reel 30971, frame 649
Laird Technologies Korea YhFirst Technologies, LLCAssignment of Assignor's Interest
Apr 18, 2014
Reel 32714, frame 206
First Technologies, LLCSamsung Electronics Co., Ltd.Assignment 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited