US2399338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of laminating porous sheet materials
Assignee: Westinghouse Electric Corp
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Filing: 1944-07-07
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Granted: 1946-04-30
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Expires: 1964-07-07
Abstract
No abstract record available.
Inventors
- 👤 James G Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:39
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/562; B32; B32B; B32B27/00; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; H01B3/48; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1038; Y10T156/1089; Y10T156/1092
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) | 1949-04-29 | 1949-10-29 | 1950-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-29 | 1953-10-29 | 1954-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-29 | 1957-10-29 | 1958-04-30 | $7700.00 | Window Closed / Lapsed |