US3187694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal cased refractory with protected suspending means
Assignee: AP Green Fire Brick Co
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Filing: 1963-10-03
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Granted: 1965-06-08
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Expires: 1983-10-03
Abstract
No abstract record available.
Inventors
- 👤 James A Crookston
- 👤 Charles M Hodges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:10
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/04; F27D1/06; F27D1/08; F27D1/14; F27D1/145; F27D1/147; F27D1/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A REFRACTORY PRODUCT COMPRISING A COMPRESSED REFRACTORY MIX, A HANGER HAVING AN ANCHOR PORTION EMBEDDED IN THE REFRACTORY MIX AND A HANGER PORTION LYING SUBSTANTIALLY FLUSH WITH THE END OF THE REFRACTORY PRODUCT WITHIN THE REFRACTORY MIX, AND MEANS INTERPOSED BETWEEN THE HANGER PORTION AND THE REFRACTORY MIX SEPARATING THE HANGER PORTION FROM THE REFRACTORY MIX, SAID MEANS BEING DISTENDED INTO THE REFRACTORY MIX ADJACENT TO THE HANGER
Claim 2
Dependent Claim
68 words
A REFRACTORY PRODUCT COMPRISING A COMPRESSED REFRACTORY MIX, A HANGER HAVING AN ANCHOR PORTION EMBEDDED IN THE REFRACTORY MIX AND A HANGER PORTION LYING SUBSTANTIALLY FLUSH WITH THE END OF THE REFRACTORY PRODUCT WITHIN THE REFRACTORY MIX, AND MEANS INTERPOSED BETWEEN THE HANGER PORTION AND THE REFRACTORY MIX SEPARATING THE HANGER PORTION FROM THE REFRACTORY MIX, SAID MEANS BEING DISTENDED INTO THE REFRACTORY MIX ADJACENT TO THE HANGER
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |