Patent US2121966A successfully refreshed from Google Patents.
US2121966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of molding synthetic resins and like plastic materials
Assignee: John Robertson Co Inc
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Filing: 1934-11-12
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Granted: 1938-06-28
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Expires: 1954-11-12
Abstract
No abstract record available.
Inventors
- 👤 Conrad C Jacobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:12
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/16; B29C48/18; B29C48/21; B29C48/001; B29C48/0013; B29C48/0015; B29C48/0022; B29C48/03; B29C48/06; B29C48/09; B29C48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-06-27 | 1941-12-27 | 1942-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-06-27 | 1945-12-27 | 1946-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-06-27 | 1949-12-27 | 1950-06-28 | $7700.00 | Window Closed / Lapsed |