US2813035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterless green molding sand
Assignee: Deere and Co
•
Filing: 1954-03-12
•
Granted: 1957-11-12
•
Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Norman A Sauter
- 👤 Mervin H Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:20
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/167; Y; Y10; Y10S; Y10S106/00; Y10S106/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
GREEN MOLDING SAND CONSISTING ESSENTIALLY OF A MIXTURE OF SILICA SAND, 11/2%-3% PETROLEUM OIL, AND 2%-3% OF AN AGENT FOR GELLING SAID PETROLEUM OIL COMPRISING DIMETHYLDIOCTADECYL AMMONIUM BENTONITE.
Claim 2
Dependent Claim
28 words
GREEN MOLDING SAND CONSISTING ESSENTIALLY OF A MIXTURE OF SILICA SAND, 11/2%-3% PETROLEUM OIL, AND 2%-3% OF AN AGENT FOR GELLING SAID PETROLEUM OIL COMPRISING DIMETHYLDIOCTADECYL AMMONIUM BENTONITE.
References Cited (Backward Citations)
USRE18652E
Cited
US1919939A
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US2260625A
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US2256943A
Cited
US2531440A
Cited
US2628197A
Cited
GB697689A
Cited
US2622987A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |