US3203451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrugated tube for lining wells
Assignee: Pan American Petroleum Corp
•
Filing: 1964-06-25
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Granted: 1965-08-31
•
Expires: 1984-06-25
Abstract
No abstract record available.
Inventors
- 👤 Renic P Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:13
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10; E21B43/103; E21B43/105; B; B29; B29D; B29D22/00; E21B17/00; B29K; B29K2105/00; B29K2105/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
AN ARTICLE OF MANUFACTURE SUITABLE FOR EXPANSION TO FORM A PATCH FOR CASING IN WELLS, COMPRISING A LONGITUDINALLY CORRUGATED TUBE OF MALLEABLE METAL AND A MAT OF GLASS FIBERS ATTACHED TO THE OUTER SURFACE OF SAID CORRUGATED TUBE AND IN CONTACT WITH SUBSTANTIALLY THE ENTIRE OUTER SURFACE OF SAID CORRUGATED TUBE, SAID MAT BEING CAPABLE FOR CARRYING LIQUID RESIN.
Claim 2
Dependent Claim
59 words
AN ARTICLE OF MANUFACTURE SUITABLE FOR EXPANSION TO FORM A PATCH FOR CASING IN WELLS, COMPRISING A LONGITUDINALLY CORRUGATED TUBE OF MALLEABLE METAL AND A MAT OF GLASS FIBERS ATTACHED TO THE OUTER SURFACE OF SAID CORRUGATED TUBE AND IN CONTACT WITH SUBSTANTIALLY THE ENTIRE OUTER SURFACE OF SAID CORRUGATED TUBE, SAID MAT BEING CAPABLE FOR CARRYING LIQUID RESIN.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |