US3614967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayered pipe coatings and coated pipe
Assignee: Chase Corp
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Filing: 1968-10-08
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Granted: 1971-10-26
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Expires: 1988-10-08
Abstract
Abstract A PIPE COATING, A COATED PIPE AND METHOD OF FORMING SUCH COATED PIPE ARE DISLOCED WHEREIN THE PIPE IS SURROUNDED BY PREFORMED INSULATION SUCH AS GLASS FOAM AND THE INSULATION IS SURROUNDED BY A MAT MADE UP OF A FIRST LAYER OF HEAT SOFTENING RESIN, A SURROUNDING LAYER OF WOVEN GLASS FABRIC, A SECOND LAYER OF SAID RESIN, A LAYER OF CONDUCTIVE FOIL, A THIRD LAYER OF SAID RESIN AND AN OUTER LAYER OF WATER IMPERVIOUS PLASTIC FILM, SAID MAT BEING PLACED WITH OVERLAPPING EDGES WHICH ARE HEAT SEALED TOGETHER
Inventors
- 👤 John H Royston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:50
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/02; F16L59/021; F16L59/022; F16L59/023; B; B32; B32B; B32B1/00; B32B1/08; B32B5/00; B32B5/18; F16L59/024; F16L59/10; F16L59/14; B32B2307/00; B32B2307/20; B32B2307/206; B32B2307/30; B32B2307/304; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2597/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1314; Y10T428/14; Y10T428/1414; Y10T428/1438; Y10T428/1443; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249969; Y10T428/249981
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |