The Patent Finder
US

Apparatus and Method for Retrofitting Candle Devices on a Gaming Machine

US 8,317,604 Lapsed on the fee record
OverviewFamilyAssignmentsSources & methods

Lapsed Nov 27, 2024 on the fee record · High confidence

Third maintenance fee unpaid; grace period ended.

Held by IGT
Filed Nov 10, 2011 as application 13/294,064 · Granted Nov 27, 2012
Base term, 20 years from filing
Today
Lapsed Nov 27, 2024
2010 2030
Clock starts
Nov 10, 2010
No longer in force
Nov 27, 2024
Granted
Nov 27, 2012
Term would have run to
Nov 10, 2030
base term after the term ends 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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,083,592, US 8,088,014, to Nov 10, 2030. 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.
38
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

Its term would have run to Nov 10, 2030: its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Nov 10, 2010, when application 12/943,792, the earliest non-provisional in its chain, was filed (this one was filed Nov 10, 2011)Nov 10, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 8,083,592, US 8,088,014)resolves to Nov 10, 2030, no earlier than this term, so no changeHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidlapsed Nov 27, 2024High confidence
Computed term endThe steps above, in orderNov 27, 2024High confidence

This family

US 8,088,014In force
Nov 2030
Nov 2030
US 8,083,592Lapsed on the fee record
Dec 2023
Dec 2023
US 8,241,119In force
Dec 2030
Dec 2030
US 8,336,697In force
Nov 2030
Nov 2030
Application 12/943,802Abandoned
not computed
not computed
Application PCT/US2010/059551PCT application
no patent term
no patent term
US 8,460,091In force
Jan 2031
Jan 2031
US 8,317,604this patent
Nov 2024
Nov 2024
8 of 38 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 18, 2011
Reel 27252, frame 455
Wells, William R.Leap Forward GamingAssignment of Assignor's Interest
May 7, 2013
Reel 30370, frame 294
Leap Forward Gaming, Inc.Macquarie US Trading LLCIntellectual Property Security Agreement
Jan 23, 2014
Reel 32123, frame 408
Wells, William RLeap Forward Gaming, Inc.Assignment of Assignor's Interest
Oct 17, 2016
Reel 40033, frame 234
Leap Forward Gaming, Inc.IGTAssignment of Assignor's Interest
Oct 17, 2016
Reel 40033, frame 226
Macquarie US Trading LLCLeap Forward Gaming, Inc.Release of Security 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