US2571986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry process for making composite products with ph control
Assignee: Plywood Res Foundation
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Filing: 1949-11-21
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Granted: 1951-10-16
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Expires: 1969-11-21
Abstract
No abstract record available.
Inventors
- 👤 Earl G Hallonquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:56
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/02; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
THE PROCESS FOR THE MANUFACTURE OF CONSOLIDATED LIGNOCELLULOSE PRODUCTS WHICH COMPRISES FORMING A MIXTURE OF PIECES OF RELATIVELY NON-HYDROLIZED LIGNOCELLULOSE, ADJUSTING THE PH OF THE MIXTURE TO A VALUE OF LESS THAN ABOUT 6 DRY FORMING THE MIXTURE INTO A MAT, AND CONSOLIDATING THE MAT.
Claim 2
Dependent Claim
45 words
THE PROCESS FOR THE MANUFACTURE OF CONSOLIDATED LIGNOCELLULOSE PRODUCTS WHICH COMPRISES FORMING A MIXTURE OF PIECES OF RELATIVELY NON-HYDROLIZED LIGNOCELLULOSE, ADJUSTING THE PH OF THE MIXTURE TO A VALUE OF LESS THAN ABOUT 6 DRY FORMING THE MIXTURE INTO A MAT, AND CONSOLIDATING THE MAT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |