Patent US3227788A successfully refreshed from Google Patents.
US3227788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of insulating a pipe assembly
Assignee: VERTECS Corp A CORP OF WA
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Filing: 1960-02-29
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Granted: 1966-01-04
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Expires: 1980-02-29
Abstract
No abstract record available.
Inventors
- 👤 Lincoln L Loper
- 👤 George E Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:45
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/04; F16L59/14; F16L59/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF INSULATIG A PIPE ASSEMBLY WHICH COMPRISES PROVIDING A SUBSTANTIALLY RIGIS FORM ABOUT SAID PIPE CONSISTING OF WATER IMPERVIOUS SYNTHETIC RESIN STRUCTURE, POURING A SETTABLE INSULATING CONCRETE MIXTURE INTO SAID FORM AND ABOUT SAID PIPE, SAID FORM SERVING AS THE COMPLETE SUPPORT FOR SAID CONCRETE MIXTURE SETTING THE INSULATING MATERIAL ABOUT SAID PIPE, AND SEALING SAID FORM INTO AN AIR-TIGHT CONDITION, SAID FORM THEREAFTER SERVING AS A AIR-TIGHT CASING.
Claim 2
Independent Claim
71 words
THE METHOD OF INSULATIG A PIPE ASSEMBLY WHICH COMPRISES PROVIDING A SUBSTANTIALLY RIGIS FORM ABOUT SAID PIPE CONSISTING OF WATER IMPERVIOUS SYNTHETIC RESIN STRUCTURE, POURING A SETTABLE INSULATING CONCRETE MIXTURE INTO SAID FORM AND ABOUT SAID PIPE, SAID FORM SERVING AS THE COMPLETE SUPPORT FOR SAID CONCRETE MIXTURE SETTING THE INSULATING MATERIAL ABOUT SAID PIPE, AND SEALING SAID FORM INTO AN AIR-TIGHT CONDITION, SAID FORM THEREAFTER SERVING AS A AIR-TIGHT CASING.
References Cited (Backward Citations)
US1646388A
Cited
US1792855A
Cited
US1991455A
Cited
US2007969A
Cited
US2081867A
Cited
US2120309A
Cited
FR814289A
Cited
US2321277A
Cited
US2224419A
Cited
US2355966A
Cited
US2456400A
Cited
US2650184A
Cited
US2855021A
Cited
US2691694A
Cited
US2850890A
Cited
US2740162A
Cited
US2906294A
Cited
US2901775A
Cited
GB761208A
Cited
US2933917A
Cited
US2870793A
Cited
US2824033A
Cited
US2773512A
Cited
US2894538A
Cited
US2880116A
Cited
US2962052A
Cited
US2997071A
Cited
US3093160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |