US2807282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced carbonaceous pipe and method of making same
Assignee: Union Carbide Corp
•
Filing: 1954-02-17
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Granted: 1957-09-24
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Expires: 1974-02-17
Abstract
No abstract record available.
Inventors
- 👤 Willie H Watts
- 👤 Robert P Stambaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:54
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/12; F16L9/00; F16L9/12; F16L9/127; F16L9/128; F16L9/133
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AN ARTICLE OF MANUFACTURE COMPRISING, IN COMBINATION, A NORMALLY FRAGILE, POROUS CARBONACEOUS PIPE, A WOVEN FIBROUS SLEEVING AFFIXED ON THE EXTERNAL SURFACE OF SAID PIPE, AND AN INFUSIBLE RESIN, SAID RESIN BEING PRESENT IN THE PORES OF SAID PIPE, ON THE SURFACE THEREOF, AND IN THE INTERSTICES BETWEEN THE FIBERS OF SAID WOVEN, FIBROUS SLEEVING.
Claim 2
Dependent Claim
55 words
AN ARTICLE OF MANUFACTURE COMPRISING, IN COMBINATION, A NORMALLY FRAGILE, POROUS CARBONACEOUS PIPE, A WOVEN FIBROUS SLEEVING AFFIXED ON THE EXTERNAL SURFACE OF SAID PIPE, AND AN INFUSIBLE RESIN, SAID RESIN BEING PRESENT IN THE PORES OF SAID PIPE, ON THE SURFACE THEREOF, AND IN THE INTERSTICES BETWEEN THE FIBERS OF SAID WOVEN, FIBROUS SLEEVING.
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |