Patent US2449526A successfully refreshed from Google Patents.
US2449526A
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US
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Process for manufacturing plywood tubing
Assignee: United States Plywood Corp
•
Filing: 1943-05-03
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Granted: 1948-09-14
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Expires: 1963-05-03
Abstract
No abstract record available.
Inventors
- 👤 James J Dunne
- 👤 Orvil S Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:09
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; B27D1/08; Y; Y10; Y10S; Y10S220/00; Y10S220/23; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1031; Y10T156/1052; Y10T156/1062; Y10T156/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1645936A
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US2296781A
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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) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |