Patent US2499398A successfully refreshed from Google Patents.
US2499398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic extruder
Assignee: Individual
•
Filing: 1945-12-22
•
Granted: 1950-03-07
•
Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 Lyon George Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:26
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/03; B29C48/09
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US97035A
Cited
US574577A
Cited
US1196648A
Cited
US1768671A
Cited
US1956330A
Cited
US1800180A
Cited
US2011055A
Cited
US1914689A
Cited
US2043681A
Cited
US2291212A
Cited
US2384521A
Cited
US2370469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |