Patent US2691202A successfully refreshed from Google Patents.
US2691202A
Expired / Lapsed
US
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Synthetic material setting machine
Assignee: Individual
•
Filing: 1949-11-16
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Granted: 1954-10-12
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Expires: 1969-11-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Parkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:15
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US397586A
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US1786421A
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US1861422A
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GB402087A
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US2338983A
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US2338391A
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US2317409A
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US2365931A
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US2343351A
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US2498662A
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US2488937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |