US2700804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making castings
Assignee: HINES FLASK CO
•
Filing: 1950-10-06
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Granted: 1955-02-01
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Expires: 1970-10-06
Abstract
No abstract record available.
Inventors
- 👤 Russell J Hines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:26
CPC Classifications
B; B22; B22C; B22C9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US447804A
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US539209A
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DE470233C
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US1187027A
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FR491959A
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US1747223A
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US1777288A
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US2342769A
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US2346182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |