Expansion joints for a tubular transportation system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 23, 2022
Grant Date -
Sep 7, 2017
app pub date -
Mar 7, 2017
filing date -
Mar 7, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A tubular structure includes at least one exterior tube and at least one interior tube, at least a portion of the interior tube is disposed within the exterior tube. The tubular structure further includes at least one expansion joint provided between the exterior tube and the interior tube and the expansion joint allows lateral expansion or contraction of the exterior tube and the interior tube and maintains a pressure within the exterior and the interior tubes.
First Claim
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International Classification(s)
- 2017 Application Filing Year
- F16L Class
- 2082 Applications Filed
- 1478 Patents Issued To-Date
- 70.99 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- F16L Class
- 75.74 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Feb 23, 2026 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 23, 2030 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 23, 2034 |
