US2860947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of casting phenolic resins in a tin-plated mold
Assignee: AT&T Inc
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Filing: 1954-06-14
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Granted: 1958-11-18
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Expires: 1974-06-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Kalat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:27
CPC Classifications
B; B29; B29C; B29C39/00; B29C39/003; B29C39/006; Y; Y10; Y10S; Y10S425/00; Y10S425/029
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF MOLDING IN AN OPEN STEEL MOLD THERMOSETTING PHENOLIC NON-SHRINKING CASTING RESINS HARDENED BY THE USE OF AN ACID CATALYST WHICH COMPRISES TIN PLATING THE STEEL MOLD, MIXING THE INGREDIENTS OF THE RESIN AND POURING THE MIXTURE INTO THE MOLD, HEATING THE MOLD AND THE MIXTURE THEREIN TO POLYMERIZE THE RESIN, AND REMOVING THE CASTING FROM THE MOLD.
Claim 2
Independent Claim
60 words
A METHOD OF MOLDING IN AN OPEN STEEL MOLD THERMOSETTING PHENOLIC NON-SHRINKING CASTING RESINS HARDENED BY THE USE OF AN ACID CATALYST WHICH COMPRISES TIN PLATING THE STEEL MOLD, MIXING THE INGREDIENTS OF THE RESIN AND POURING THE MIXTURE INTO THE MOLD, HEATING THE MOLD AND THE MIXTURE THEREIN TO POLYMERIZE THE RESIN, AND REMOVING THE CASTING FROM THE MOLD.
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) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |