US2667804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-temperature packing
Assignee: EIDP Inc
•
Filing: 1949-06-21
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Granted: 1954-02-02
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Expires: 1969-06-21
Abstract
No abstract record available.
Inventors
- 👤 John R Boyer
- 👤 Richard M Luckring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:11
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/20; F16J15/22; F16L; F16L19/00; F16L27/00; F16L27/12; F16L27/127; F16L27/1275; F16L27/12751; F16L49/00; F16L49/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A HIGH TEMPERATURE RESISTANT FIBROUS JOINT PACKING AND SEALING COMPOSITION, STABLE AT TEMPERATURES OF 800* C. TO 1000* C., FORMED INTO STRANDS FROM A NUMBER OF SUBSTANTIALLY PURE SILICA FIBERS PLAITED INTO A SUCCESSION OF SUPERIMPOSED LAYERS ONE OVER ANOTHER TO FORM A COMPOSITE BRAID, PRE-SHRUNK AT RELATIVELY HIGH TEMPERATURES, AND HAVING A PARTICULATE TEMPERATURE RESISTANT SEALING MEDIUM INCORPORATED IN THE INTERSTICES OF THE COMPOSITE BRAID.
Claim 2
Dependent Claim
66 words
A HIGH TEMPERATURE RESISTANT FIBROUS JOINT PACKING AND SEALING COMPOSITION, STABLE AT TEMPERATURES OF 800* C. TO 1000* C., FORMED INTO STRANDS FROM A NUMBER OF SUBSTANTIALLY PURE SILICA FIBERS PLAITED INTO A SUCCESSION OF SUPERIMPOSED LAYERS ONE OVER ANOTHER TO FORM A COMPOSITE BRAID, PRE-SHRUNK AT RELATIVELY HIGH TEMPERATURES, AND HAVING A PARTICULATE TEMPERATURE RESISTANT SEALING MEDIUM INCORPORATED IN THE INTERSTICES OF THE COMPOSITE BRAID.
References Cited (Backward Citations)
US1056282A
Cited
US2027389A
Cited
GB502643A
Cited
US2132702A
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US2245824A
Cited
US2337986A
Cited
US2366853A
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US2360106A
Cited
US2554234A
Cited
US2557343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |