US2786773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linoleum cement from tall oil ester, and linoleum obtainable therefrom
Assignee: Shell Development Co
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Filing: 1953-07-28
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Granted: 1957-03-26
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Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jr John J Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:51
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; C08G59/1472; D; D06; D06N; D06N1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A CEMENT COMPRISING A GEL OF TALL OIL POLYESTER OF AN ESTERIFIABLE GLYCERYL POLYETHER OF A DIHYDRIC PHENOL HAVING ALTERNATING GLYCERYL RADICALS AND THE AROMATIC HYDROCARBON RADICALS OF THE PHENOL UNITED IN A CHAIN BY ETHER OXYGEN ATOMS, WHICH POLYESTER CONTAINS TERMINAL GLYCERYL RADICALS AND AN AVERAGE OF ABOT 2 TO 10 OF THE AROMATIC HYDROCARBON RADICALS IN THE CHAIN, WHICH POLYESTER HAS AT LEAST THREE ACYLOXY GROUPS OF THE TALL OIL ACID JOINED TO THE GLYCERYL RADICALS, AND WHICH GEL IS OBTAINED BY AGITATING AND BLOWING THE ESTER WITH A GAS CONTAINING MOLECULAR OXYGEN AT FROMABOUT 150 TO 250*F.
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) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |