US2495277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions, including a hydrogenated semidrying oil and methacrylate resin mixture as a lubricant
Assignee: Armstrong World Industries Inc
•
Filing: 1942-12-31
•
Granted: 1950-01-24
•
Expires: 1962-12-31
Abstract
No abstract record available.
Inventors
- 👤 Victor A Navikas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:31
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/007
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
AN EXTRUDABLE CORK COMPOSITION MIX WHICH COMPRISES A MASS OF CORK PARTICLES, A BINDER THEREFOR, AND A LUBRICANT COATING THE CORK PARTICLES WITHOUT SUBSTANTIAL PENETRATION INTO THE BODY THEREOF, SAID LUBRICANT INCLUDING A MIXTURE OF HYDROGENATED COTTONSEED OILS IN WHICH ONE OIL HAS A MELTING POINT OF ABOUT 98*F. AND ANOTHER HAS A MELTING POINT OF ABOUT 140*F. AND A BODYING AGENT FOR THE OILS CONSISTING ESSENTIALLY OF A THERMOPLASTIC METHACRYLATE RESIN HAVING A MOLECULAR WEIGHT ABOVE 10,000 SELECTED FROM THE GROUP CONSISTING OF POLYBUTYL METHACRYLATE, POLYMETHYL METHACRYLATE, AND POLYPROPYL METHACRYLATE.
References Cited (Backward Citations)
US2050272A
Cited
GB416412A
Cited
US2082278A
Cited
US2204517A
Cited
US2273780A
Cited
US2365508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |