Patent US2435507A successfully refreshed from Google Patents.
US2435507A
Expired / Lapsed
US
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Apparatus for making molds
Assignee: Briggs Manufacturing Co
•
Filing: 1943-04-02
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Granted: 1948-02-03
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Expires: 1963-04-02
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Pattison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:46
CPC Classifications
B; B22; B22C; B22C21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1337780A
Cited
USRE21046E
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US1086582A
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US1472807A
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US2205650A
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US2201037A
Cited
US2201038A
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US2282070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |