US3686106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Room temperature curing foundry binder
Assignee: Hooker Chemical Corp
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Filing: 1970-03-25
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Granted: 1972-08-22
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Expires: 1990-03-25
Abstract
Abstract A ROOM TEMPERATURE CURING FOUNDRY BINDER IS PROVIDED COMPRISING (A) A RESINOUS COMPONENT COMPRISING A MIXTURE OF (1) AN OIL MODIFIED HYDROXYALKYLATED NOVOLAC RESIN, (2) AN UNSATURATED PETROLEUM POLYMER AND (3) A SOLVENT, AND (B) AN ORGANIC POLYISOCYANATE.
Inventors
- 👤 Richard B Tideswell
- 👤 Jonathan A Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:34
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; B22C1/2233; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/54; C08G18/546
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |