Patent US3031748A successfully refreshed from Google Patents.
US3031748A
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Method of joining refractory brick channels and hangers
Assignee: EJ Lavino and Co
•
Filing: 1959-12-01
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Granted: 1962-05-01
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Expires: 1979-12-01
Abstract
No abstract record available.
Inventors
- 👤 Robert M Focht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:01
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; B21D39/031; B21D39/032; F; F27; F27D; F27D1/00; F27D1/14; F27D1/145; F27D1/147; F27D1/148; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49936; Y10T29/49938; Y10T29/49943
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1252289A
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US1446095A
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US1784256A
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DE510001C
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US1916623A
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US2012889A
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US2105391A
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US2465534A
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US2713197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |