US3053671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
No bake compositions for making molds and cores
Assignee: Individual
•
Filing: 1959-06-25
•
Granted: 1962-09-11
•
Expires: 1979-06-25
Abstract
No abstract record available.
Inventors
- 👤 Tobler August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:57
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/22; B22C1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A COMPOSITION FOR FOUNDRY CORES AND MOLDS CONSISTING ESSENTIALLY OF A FOUNDRY SAND AGGREGATE ADMIXED WITH A BINDER CONSISTING ESSENTIALLY OF ABOUT 15% TO 35% OF A POLYHYDRIC ALCOHOL ESTER OF ABIETIC ACID ADMIXED WITH ABOUT 65% TO 85% OF A DRYING OIL.
Claim 2
Dependent Claim
43 words
A COMPOSITION FOR FOUNDRY CORES AND MOLDS CONSISTING ESSENTIALLY OF A FOUNDRY SAND AGGREGATE ADMIXED WITH A BINDER CONSISTING ESSENTIALLY OF ABOUT 15% TO 35% OF A POLYHYDRIC ALCOHOL ESTER OF ABIETIC ACID ADMIXED WITH ABOUT 65% TO 85% OF A DRYING OIL.
References Cited (Backward Citations)
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Cited
US2270947A
Cited
US2383624A
Cited
US2434168A
Cited
US2584300A
Cited
US2749247A
Cited
US2816041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |