Patent US3053715A successfully refreshed from Google Patents.
US3053715A
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High temperature pipe insulation and method of making same
Assignee: Johns Manville Fiber Glass Inc
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Filing: 1958-03-17
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Granted: 1962-09-11
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Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Labino Dominick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:57
CPC Classifications
C; C04; C04B; C04B30/00; C04B30/02; F; F16; F16L; F16L59/00; F16L59/02; F16L59/029; C04B2111/00; C04B2111/00474; C04B2111/00612; C04B2111/00663; C04B2111/00706; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24992; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/24995
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
A COMPOSITE INSULATING UNIT COMPRISING A FIRST MAT CONSISTION OF HAPHAZARDLY ARRANGED SILICEOUS FIBERS, SAID FIBERS HAVING AN AVERAGE DIAMETER OF LESS THAN ABOUT 1 MICRON AND SECURED TOGETHER BY SELF-ADHERENCE, AND A SECOND MAT OF HAPHAZARDLY ARRANGED SILICEOUS FIBERS BONDED TO ONE ANOTHER.
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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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |