Patent US2828215A successfully refreshed from Google Patents.
US2828215A
Expired / Lapsed
US
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Linoleum cements
Assignee: Armstrong World Industries Inc
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Filing: 1951-11-30
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Granted: 1958-03-25
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Dunlap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:13
CPC Classifications
D; D06; D06N; D06N1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A COMPOSITION OF MATTER SUITABLE FOR USE IN THE MANUFACTURE OF LINOLEUM CEMENTS BY OXIDATION AT A TEMPERATURE OF ABOUT 160F. TO ABOUT 240*F. AND COMPRISING ABOUT 10% TO 30% BY WEIGHT OF A OXIDIZED FRACTION OF TALL OIL WHICH IS COMPRISED ESSENTIALLY OF THE OXIDIZED UNSATURATED COMPONENTS OF TALL OIL AND WHICH IS SUBSTANTIALLY COMPLETELY FREE FROM SATURATED FATTY ACIDS AND WHICH HAS A VISCOSITY BETWEEN ABOUT 15 SECONDS AND 250 SECONDS, ABOUT 13% TO 21% BY WEIGHT OF ROSIN, AND ABOUT 57% TO 69% BY WEIGHT OF SICCATIVE FATTY OIL.
Claim 2
Dependent Claim
92 words
A COMPOSITION OF MATTER SUITABLE FOR USE IN THE MANUFACTURE OF LINOLEUM CEMENTS BY OXIDATION AT A TEMPERATURE OF ABOUT 160F. TO ABOUT 240*F. AND COMPRISING ABOUT 10% TO 30% BY WEIGHT OF A OXIDIZED FRACTION OF TALL OIL WHICH IS COMPRISED ESSENTIALLY OF THE OXIDIZED UNSATURATED COMPONENTS OF TALL OIL AND WHICH IS SUBSTANTIALLY COMPLETELY FREE FROM SATURATED FATTY ACIDS AND WHICH HAS A VISCOSITY BETWEEN ABOUT 15 SECONDS AND 250 SECONDS, ABOUT 13% TO 21% BY WEIGHT OF ROSIN, AND ABOUT 57% TO 69% BY WEIGHT OF SICCATIVE FATTY OIL.
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |