US3288171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid conduit and method for making same
Assignee: J-M A/C PIPE Corp A DE CORP
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Filing: 1965-02-10
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Granted: 1966-11-29
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Expires: 1985-02-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert T Hucks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:24
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/92; B28B21/94; B05; B05D; B05D7/00; B05D7/22; B05D7/222; F; F16; F16L; F16L58/00; F16L58/02; F16L58/04; F16L58/10; F16L58/1009; F16L58/1036; F16L9/00; F16L9/08; F16L9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A FLUID CONDUIT COMPRISING: (A) A POROUS FIBRO-CEMENT PIPE HAVING ON THE INTERIOR SURFACE THEREOF A CAST, HARDENED, SMOOTH, BLISTERFREE, AND FLUID-IMPERVIOUS COATING, (B) SAID COATING PENETRATING PORES OF SAID INTERIOR SURFACE TO FORM AN INTEGRAL BOND THEREWITH, (C) SAID COATING COMPRISING A HEAT-REACTED, CATALYZED, LIQUID, THERMOSETTING RESIN, AND (D) SAID COATING BEING BETWEEN ABOUT 8 AND ABOUT 60 MILS IN THICKNESS.
Claim 2
Dependent Claim
62 words
A FLUID CONDUIT COMPRISING: (A) A POROUS FIBRO-CEMENT PIPE HAVING ON THE INTERIOR SURFACE THEREOF A CAST, HARDENED, SMOOTH, BLISTERFREE, AND FLUID-IMPERVIOUS COATING, (B) SAID COATING PENETRATING PORES OF SAID INTERIOR SURFACE TO FORM AN INTEGRAL BOND THEREWITH, (C) SAID COATING COMPRISING A HEAT-REACTED, CATALYZED, LIQUID, THERMOSETTING RESIN, AND (D) SAID COATING BEING BETWEEN ABOUT 8 AND ABOUT 60 MILS IN THICKNESS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |