US2887461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thixotropic resin composition comprising an unsaturated alkyd resin, styrene and silica aerogel
Assignee: Celanese Corp
•
Filing: 1953-10-07
•
Granted: 1959-05-19
•
Expires: 1973-10-07
Abstract
No abstract record available.
Inventors
- 👤 Eugene V Hort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:42
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A THIXOTROPIC RESIN COMPOSITION COMPRISING AN UNSATURATED SOLID POLYESTER RESIN OF A POLYHYDROXY ALCOHOL AND AN UNSATURATED POLYCARBOXYLIC ACID, A SOLVENT FOR ACID POLYESTER RESIN CONSISTING ESSENTIALLY OF STYRENE AND AN INGREDIENT FOR MAKING THE COMPOSITION THIXOTROPIC CONSISTING ESSENTIALLY OF A SMALL PROPORTION OF SILICA AEROGEL.
Claim 2
Dependent Claim
46 words
A THIXOTROPIC RESIN COMPOSITION COMPRISING AN UNSATURATED SOLID POLYESTER RESIN OF A POLYHYDROXY ALCOHOL AND AN UNSATURATED POLYCARBOXYLIC ACID, A SOLVENT FOR ACID POLYESTER RESIN CONSISTING ESSENTIALLY OF STYRENE AND AN INGREDIENT FOR MAKING THE COMPOSITION THIXOTROPIC CONSISTING ESSENTIALLY OF A SMALL PROPORTION OF SILICA AEROGEL.
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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |