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US2120328A
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Method of shaping sheet material
Assignee: Plax Corp
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Filing: 1933-01-31
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Granted: 1938-06-14
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Expires: 1953-01-31
Abstract
No abstract record available.
Inventors
- 👤 Enoch T Ferngren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:38
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/30; B29C51/32; B29C51/04; B29C51/08; B29C51/082; B29C51/18; B29C51/20; B29C51/24; B31; B31B; B31B50/00; B31B50/26; B31B50/44; B31B50/442; B29C51/10; B31B2100/00; B31B2110/00; B31B2110/10; B31B2110/20; B31B2120/00; B31B2120/70; B31B50/59; B31B50/592
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) | 1941-06-13 | 1941-12-13 | 1942-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-06-13 | 1945-12-13 | 1946-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-06-13 | 1949-12-13 | 1950-06-14 | $7700.00 | Window Closed / Lapsed |