Patent US2297309A successfully refreshed from Google Patents.
US2297309A
Expired / Lapsed
US
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Method of molding
Assignee: Individual
•
Filing: 1939-12-29
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Granted: 1942-09-29
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Expires: 1959-12-29
Abstract
No abstract record available.
Inventors
- 👤 Rollin J Limbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:08
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/20; B29C37/00; B29C37/0078; B29C37/0082; B29C37/0085; B29C43/18; B29C70/00; B29C70/68; B29C70/72; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998
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) | 1945-09-28 | 1946-03-30 | 1946-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-28 | 1950-03-30 | 1950-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-28 | 1954-03-30 | 1954-09-29 | $7700.00 | Window Closed / Lapsed |