US2450299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable molding sand muller, including suspendable power-driven muller unit and underlying portable bowl receptacle
Assignee: Pettibone Traverse Lift LLC
•
Filing: 1944-04-24
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Granted: 1948-09-28
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Expires: 1964-04-24
Abstract
No abstract record available.
Inventors
- 👤 Walter F Piper
- 👤 Joseph J Soldat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:19
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/04; B22C5/0409; B22C5/0422; B22C5/0427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US348931A
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US529617A
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US646484A
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US856295A
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US1115591A
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US1144160A
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US1933278A
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US2203672A
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US2318797A
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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) | 1951-09-28 | 1952-03-29 | 1952-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-28 | 1956-03-29 | 1956-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-28 | 1960-03-29 | 1960-09-28 | $7700.00 | Window Closed / Lapsed |