US2398388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of laminated stock bonded with a dihydroxy benzene aldehyde resin
Assignee: PENNSYLVANIA COAL PRODUCTS Co
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Filing: 1941-04-05
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Granted: 1946-04-16
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Expires: 1961-04-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:24
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/20; B; B32; B32B; B32B27/00; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/48
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) | 1949-04-15 | 1949-10-15 | 1950-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-15 | 1953-10-15 | 1954-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-15 | 1957-10-15 | 1958-04-16 | $7700.00 | Window Closed / Lapsed |