US2477180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making plywood tubing
Assignee: United States Plywood Corp
•
Filing: 1943-09-01
•
Granted: 1949-07-26
•
Expires: 1963-09-01
Abstract
No abstract record available.
Inventors
- 👤 Charles B Hemming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:36
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; B27D1/08; B27D1/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US146370A
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DE637029C
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US2276004A
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US2312332A
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US2331296A
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US2411542A
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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) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |