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Patent US2523670A successfully refreshed from Google Patents.
US2523670A
Expired / Lapsed
US
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Process of producing plastic patterns of irregular outlines
Assignee: Schueler Engineering Co
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Filing: 1946-06-05
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Granted: 1950-09-26
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Expires: 1966-06-05
Abstract
No abstract record available.
Inventors
- 👤 Fred C Schueler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:02
CPC Classifications
B; B29; B29D; B29D7/00; B29D7/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1401965A
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US995652A
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US1905061A
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US2020687A
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US2001389A
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US2039229A
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US2193899A
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US2391619A
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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) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |