Also listed on H2 Clipper, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 4, 2043 · Medium confidence
20-year base term ends May 4, 2043
Why Medium: A parent in the chain could not be resolved.
Held by H2C Safety Pipe, Inc.
Filed Oct 14, 2024 as application 18/914,390 · Granted Aug 18, 2026
Base term, 20 years from filing
Today
2023
2043
Clock starts
May 4, 2023
May 4, 2023
Term ends
May 4, 2043
May 4, 2043
Granted
Aug 18, 2026
Aug 18, 2026
base term
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.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
9
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 is its 20-year base term, with no adjustment for prosecution delay. 0 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts May 4, 2023, when the earliest non-provisional application in its chain was filed (this one was filed Oct 14, 2024); a parent in its chain could not be resolved (the next row) | May 4, 2043 | 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 | None on file | no change | 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 4, 2043 | Medium confidence |
This family
| US 11,236,864 | In force Nov 2040 | Nov 2040 |
| US 11,441,737 | In force Nov 2040 | Nov 2040 |
| US 12,729,814 | In force Mar 2043 | Mar 2043 |
| US 12,066,152 | In force Nov 2040 | Nov 2040 |
| Application PCT/US2024/027928 | PCT application no patent term | no patent term |
| US 12,504,126 | In force May 2043 | May 2043 |
| US 12,710,137 | this patent May 2043 | May 2043 |
| Application PCT/US2025/050269 | PCT application no patent term | no patent term |
8 of 9 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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Oct 24, 2024 Reel 69004, frame 322 | Brutoco, Rinaldo S.; Shelton, Robert H. | H2 Clipper, Inc. | Assignment of Assignor's Interest |
| Nov 24, 2025 Reel 73013, frame 146 | H2 Clipper, Inc. | H2C Safety Pipe, Inc. | Nunc Pro Tunc Assignment |
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.
What's changing
May 2043
Term ends May 4, 2043. Maintenance fees still fall due before then
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.