US2490819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Making laminated lumber
Assignee: Tennessee Valley Authority
•
Filing: 1947-06-02
•
Granted: 1949-12-13
•
Expires: 1967-06-02
Abstract
No abstract record available.
Inventors
- 👤 Robert D Lambert
- 👤 Daniel W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:40
CPC Classifications
B; B27; B27D; B27D3/00; B27D3/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T156/12; Y10T156/1317; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1749; Y10T156/1751; Y10T156/1754; Y10T156/1761
Claims Analysis
Total Claims: 0
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US2372617A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |