Patent US3179526A successfully refreshed from Google Patents.
US3179526A
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Refractory bonding mortar
Assignee: Harbison Walker Refractories Co
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Filing: 1962-03-05
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Granted: 1965-04-20
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 James L Dolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:34
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/34; C04B28/342; C04B2111/00; C04B2111/00474; C04B2111/00637; C04B2111/0087; C04B2111/00879; C04B2111/20; C04B2111/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A WET MORTAR FOR USE IN JOINING REFRACTORY SHAPES CONSISTING ESSENTIALLY OF 18 TO 20 PERCENT, BASED ON THE WEIGHT OF SOLIDS IN THE REMAINDER, OF 75 PERCENT PHOSPHORIC ACID AND THE REMAINDER SUBSTANTIALLY ALL A MEMBER SELECTED FROM THE GROUP CONSISTING OF HIGH ALUMINA MATERIALS AND ZIRCON, FREE OF VITRIFIABLE MATERIAL, SAID ACID BEING A WET ACID.
Claim 2
Dependent Claim
58 words
A WET MORTAR FOR USE IN JOINING REFRACTORY SHAPES CONSISTING ESSENTIALLY OF 18 TO 20 PERCENT, BASED ON THE WEIGHT OF SOLIDS IN THE REMAINDER, OF 75 PERCENT PHOSPHORIC ACID AND THE REMAINDER SUBSTANTIALLY ALL A MEMBER SELECTED FROM THE GROUP CONSISTING OF HIGH ALUMINA MATERIALS AND ZIRCON, FREE OF VITRIFIABLE MATERIAL, SAID ACID BEING A WET ACID.
References Cited (Backward Citations)
US2040215A
Cited
US2061099A
Cited
US2220411A
Cited
US2303304A
Cited
US2702425A
Cited
US2852401A
Cited
US2937101A
Cited
US2966421A
Cited
US3093570A
Cited
US3078173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |