US2825946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sand tempering unit
Assignee: Harry W Dietert Co
•
Filing: 1955-11-28
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Granted: 1958-03-11
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Expires: 1975-11-28
Abstract
No abstract record available.
Inventors
- 👤 Harry W Dietert
- 👤 Randolph L Dietert
- 👤 Howard L Jameson
- 👤 Joseph E Micksch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:52
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/08; G; G01; G01N; G01N33/00; G01N33/42; G05; G05D; G05D27/00; G05D27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB621181A
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US1966116A
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US2188798A
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US2273126A
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US2263797A
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US2277953A
Cited
US2401491A
Cited
GB600210A
Cited
GB593563A
Cited
US2549603A
Cited
US2709843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |