Patent US2408398A successfully refreshed from Google Patents.
US2408398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple extrusion
Assignee: Individual
•
Filing: 1943-07-24
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Granted: 1946-10-01
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Expires: 1963-07-24
Abstract
No abstract record available.
Inventors
- 👤 Theodore L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:10
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/304; B29C48/001; B29C48/0022; B29C48/03; B29C48/06; B29C48/09; B29C48/15; B29C48/154; B29C48/155; B29C2793/00; B29C2793/0027; B29C48/12; B29C48/16; B29C48/17
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) | 1949-09-30 | 1950-04-01 | 1950-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-09-30 | 1954-04-01 | 1954-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-09-30 | 1958-04-01 | 1958-10-01 | $7700.00 | Window Closed / Lapsed |