Patent US2442338A successfully refreshed from Google Patents.
US2442338A
Expired / Lapsed
US
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Apparatus for and method of forming sheet material
Assignee: Individual
•
Filing: 1944-05-25
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Granted: 1948-06-01
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Expires: 1964-05-25
Abstract
No abstract record available.
Inventors
- 👤 Gustave W Borkland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:05
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/04; B29C51/10; Y; Y10; Y10S; Y10S264/00; Y10S264/50; Y10S264/78; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |