Patent US2854842A successfully refreshed from Google Patents.
US2854842A
Expired / Lapsed
US
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Mounting for interlocked refractory walls
Assignee: MH Detrick Co
•
Filing: 1954-08-26
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Granted: 1958-10-07
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Expires: 1974-08-26
Abstract
No abstract record available.
Inventors
- 👤 Louis H Hosbein
- 👤 Raymond E Over
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:16
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/0003; F27D1/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US691599A
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US1585003A
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US1710257A
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US2082698A
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US2223215A
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US2622433A
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US2585552A
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US2699740A
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US2635451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |