Also listed on I3 Electronics, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 19, 2029 · High confidence
20-year base term ends Sep 9, 2028
Filed Mar 10, 2010 as application 12/720,849 · Granted Mar 27, 2012
Base term plus 191 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Sep 9, 2008
Sep 9, 2008
Term ends
Mar 19, 2029
Mar 19, 2029
Granted
Mar 27, 2012
Mar 27, 2012
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
191
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 191 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Sep 9, 2008, when application 12/283,146, the earliest non-provisional in its chain, was filed (this one was filed Mar 10, 2010) | Sep 9, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +191 days, USPTO patent term adjustment record | Mar 19, 2029 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 19, 2029 | High confidence |
This family
| US 7,791,897 | Lapsed on the fee record Sep 2022 | Sep 2022 |
| US 8,144,480 | this patent Mar 2029 | Mar 2029 |
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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Dec 13, 2011 Reel 27377, frame 735 | Das, Rabindra N.; Lauffer, John M.; Memis, Irving; Rosser, Steven G. | Endicott Interconnect Technologies, Inc. | Assignment of Assignor's Interest |
| May 14, 2012 Reel 28230, frame 798 | Endicott Interconnect Technologies, Inc.; Ei Transportation Company LLC; Endicott Medtech, Inc. | Pnc Bank, National Association | Security Agreement |
| Mar 6, 2013 Reel 29938, frame 823 | Pnc Bank, National Association | Integrian Holdings, LLC | Assignment of Security Agreement |
| May 6, 2013 Reel 30359, frame 57 | Endicott Interconnect Technologies, Inc.; Ei Transportation Company LLC; Endicott Medtech, Inc.; Integrian Holdings, LLC | M&T Bank | Security Agreement |
| Jun 12, 2013 Reel 30599, frame 918 | Endicott Interconnect Technologies, Inc. | Maines, William; Maines, David | Security Agreement |
| Jun 12, 2013 reel/frame not recorded | Endicott Interconnect Technologies, Inc. | Maines, William | Security Agreement |
| Jun 12, 2013 reel/frame not recorded | Endicott Interconnect Technologies, Inc. | Maines, David | Security Agreement |
| Feb 26, 2015 Reel 35098, frame 968 | Maines, William; Maines, David | Endicott Interconnect Technologies, Inc. | Release of Security Interest |
| Apr 16, 2015 Reel 35442, frame 569 | Endicott Interconnect Technologies, Inc. | I3 Electronics, Inc. | Assignment of Assignor's Interest |
| Nov 14, 2016 Reel 40608, frame 626 | I3 Electronics, Inc. | M&T Bank | Security Interest |
| Jul 15, 2019 Reel 49758, frame 265 | I3 Electronics, Inc. | TTM Technologies North America, LLC | Assignment of Assignor's Interest |
| May 30, 2023 Reel 63804, frame 702 | Telephonics Corporation; TTM Technologies, Inc.; TTM Technologies North America, LLC | JPMorgan Chase Bank, N.A., as Administrative Agent | Patent Security Agreement (ABL) |
| May 30, 2023 Reel 63804, frame 745 | Telephonics Corporation; TTM Technologies, Inc.; TTM Technologies North America, LLC | JPMorgan Chase Bank, N.A., as Administrative Agent | Patent Security Agreement (TERM Loan) |
| Jun 2, 2026 Reel 75843, frame 247 | TTM Technologies, Inc.; TTM Technologies North America, LLC; Telephonics Corporation | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Interest |
| Jun 2, 2026 Reel 75679, frame 852 | JPMorgan Chase Bank, N.A., as Administrative Agent | Telephonics Corporation; TTM Technologies, Inc.; TTM Technologies North America, LLC | Release of Security Interest in Patents Previously Recorded at Reel/Frame (063804/0702) |
| Jun 2, 2026 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | Telephonics Corporation | Release of Security Interest in Patents Previously Recorded at Reel/Frame (063804/0702) |
| Jun 2, 2026 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | TTM Technologies, Inc. | Release of Security Interest in Patents Previously Recorded at Reel/Frame (063804/0702) |
| Jun 2, 2026 reel/frame not recorded | JPMorgan Chase Bank, N.A., as Administrative Agent | TTM Technologies North America, LLC | Release of Security Interest in Patents Previously Recorded at Reel/Frame (063804/0702) |
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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Mar 2029
Term ends Mar 19, 2029. No further fees fall due before then
Note
The 191 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
later US patents cite this one
That is below the median of utility patents granted in 2012 in our data, the only group it is compared against.
How we rank
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.