US3093162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic lined perforated metal tube
Assignee: Flowserve Corp
•
Filing: 1959-06-29
•
Granted: 1963-06-11
•
Expires: 1979-06-29
Abstract
No abstract record available.
Inventors
- 👤 Victor G Reiling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:26
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/583; B29C53/587; F; F16; F16C; F16C1/00; F16C1/26; B29K; B29K2027/00; B29K2027/12; B29K2027/18; B29L; B29L2009/00; B29L2031/00; B29L2031/737; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49874; Y10T29/49908; Y10T29/49938; Y10T29/4994; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20456
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A TUBULAR ARTICLE OF THE CHARACTER DESCRIBED COMPRISING A SUBSTANTIALLY IMPERVIOUS INNER TUBE OF SINTERED PLASTIC MATERRIAL FORMING AN INNER EXPOSED SURFACE OF SAID ARTICLE, A SHEATH OF METAL ENVELOPING SAID PLASTIC TUBE AND HAVING MULTIPLE SMALL HOLES IN THE INNER SURFACE THEREOF, SAID SINTERED PLASTIC MATERIAL HAVING A COEFFICIENT OF
Claim 2
Dependent Claim
51 words
A TUBULAR ARTICLE OF THE CHARACTER DESCRIBED COMPRISING A SUBSTANTIALLY IMPERVIOUS INNER TUBE OF SINTERED PLASTIC MATERRIAL FORMING AN INNER EXPOSED SURFACE OF SAID ARTICLE, A SHEATH OF METAL ENVELOPING SAID PLASTIC TUBE AND HAVING MULTIPLE SMALL HOLES IN THE INNER SURFACE THEREOF, SAID SINTERED PLASTIC MATERIAL HAVING A COEFFICIENT OF
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |