US2773790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard molded board
Assignee: Changewood Corp
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Filing: 1955-09-02
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Granted: 1956-12-11
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Expires: 1975-09-02
Abstract
No abstract record available.
Inventors
- 👤 James D A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:52
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/04; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A CROSSCUT WOODY WAFER ADAPTED FOR USE IN A CONSOLIDATED STRUCTURE, SAID WAFER HAVING A THICKNESS WITHIN THE RANGE OF 0.015-0.065 INCH IN WHICH THE FIBERS ARE SUBSTANTIALLY PARALLEL TO AND EXTENT LONGITUDINALLY OF THE WAFER AND HAVING A LENGTH AT LEAST TEN TIMES THE THICKNESS OF THE WAFER BUT LESS THAN 5 INCHES WITH THE ENDS OF THE WAFERS AT AN ACUTE ANGLE WITH THE BROAD FACES.
Claim 2
Dependent Claim
68 words
A CROSSCUT WOODY WAFER ADAPTED FOR USE IN A CONSOLIDATED STRUCTURE, SAID WAFER HAVING A THICKNESS WITHIN THE RANGE OF 0.015-0.065 INCH IN WHICH THE FIBERS ARE SUBSTANTIALLY PARALLEL TO AND EXTENT LONGITUDINALLY OF THE WAFER AND HAVING A LENGTH AT LEAST TEN TIMES THE THICKNESS OF THE WAFER BUT LESS THAN 5 INCHES WITH THE ENDS OF THE WAFERS AT AN ACUTE ANGLE WITH THE BROAD FACES.
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) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |