Patent US3159526A successfully refreshed from Google Patents.
US3159526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated board and method of making the same
Assignee: Hoover Universal Inc
•
Filing: 1960-11-21
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Granted: 1964-12-01
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Carroll H Van Hartesveldt
- 👤 Buddy D Wahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:26
CPC Classifications
B; B27; B27D; B27D1/00; B27D1/04; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24992; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A FLAT LAMINATED SURFACE BOARD COMPRISING A SINGLE SHEET OF WOOD HAVING AN INTERMEDIATE ZONE AND AN OUTER ZONE INTEGRAL WITH SAID INTERMEDIATE ZONE AND FORMING ONE SURFACE OF SAID SHEET OF WOOD, SAID OUTER ZONE BEING COMPRESSED TO A GREATER DENSITY THAN SAID INTERMEDIATE ZONE AND BEING OF UNIFORM THICKNESS THROUGHOUT SAID SHEET OF WOOD, AND AN OUTER LAYER OF THERMOSET PLASTIC SUPPORTED ON THE ONE SURFACE OF SAID SHEET OF WOOD.
Claim 2
Dependent Claim
73 words
A FLAT LAMINATED SURFACE BOARD COMPRISING A SINGLE SHEET OF WOOD HAVING AN INTERMEDIATE ZONE AND AN OUTER ZONE INTEGRAL WITH SAID INTERMEDIATE ZONE AND FORMING ONE SURFACE OF SAID SHEET OF WOOD, SAID OUTER ZONE BEING COMPRESSED TO A GREATER DENSITY THAN SAID INTERMEDIATE ZONE AND BEING OF UNIFORM THICKNESS THROUGHOUT SAID SHEET OF WOOD, AND AN OUTER LAYER OF THERMOSET PLASTIC SUPPORTED ON THE ONE SURFACE OF SAID SHEET OF WOOD.
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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) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |