Patent US2581076A successfully refreshed from Google Patents.
US2581076A
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Decorated wallboard and method of making the same
Assignee: United States Gypsum Co
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Filing: 1946-03-01
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Granted: 1952-01-01
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Expires: 1966-03-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:42
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B28/00; C04B28/14; C04B41/45; C04B41/46; C04B41/48; C04B41/4807; C04B2111/00; C04B2111/00474; C04B2111/00612; C04B2111/0062; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31768; Y10T428/31772; Y10T428/31775
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE METHOD OF PRODUCING DECORATED GYPSUM BOARD, WHICH COMPRISES APPLYING A DECORATIVE PATTERN AND A PROTEIN BASE COATING MATERIAL TO A SURFACE OF A SHEET OF PAPER, DRYING SAID COATED AND DECORATED SHEET, APPLYING SAID DRIED DECOPERATMOSPHERIC PRESSURE AND IN THE PRESENCE OF A HYDROCARBON SOLUBLE PEROXIDE CATALYST FOR A PERIOD SUFFICIENT TO CONVERT NOT MORE THAN 80% OF THE DIOLEFIN INTO A LINEAR OILY POLYMER AND NOT MORE THAN 5% INTO A DIOLEFIN DIMER, THE METHOD OF REDUCING THE FORMATION OF SOLID INSOLUBLE POLYMER WHICH COMPRISES CONTINUALLY FLUSHING THE
Claim 2
Independent Claim
90 words
THE METHOD OF PRODUCING DECORATED GYPSUM BOARD, WHICH COMPRISES APPLYING A DECORATIVE PATTERN AND A PROTEIN BASE COATING MATERIAL TO A SURFACE OF A SHEET OF PAPER, DRYING SAID COATED AND DECORATED SHEET, APPLYING SAID DRIED DECOPERATMOSPHERIC PRESSURE AND IN THE PRESENCE OF A HYDROCARBON SOLUBLE PEROXIDE CATALYST FOR A PERIOD SUFFICIENT TO CONVERT NOT MORE THAN 80% OF THE DIOLEFIN INTO A LINEAR OILY POLYMER AND NOT MORE THAN 5% INTO A DIOLEFIN DIMER, THE METHOD OF REDUCING THE FORMATION OF SOLID INSOLUBLE POLYMER WHICH COMPRISES CONTINUALLY FLUSHING THE
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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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |