Patent US2837490A successfully refreshed from Google Patents.
US2837490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures of vinyl resin, aromatic acid, and asbestos containing iron oxide
Assignee: ARGUS CHEMICAL LAB Inc
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Filing: 1954-01-08
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Granted: 1958-06-03
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Expires: 1974-01-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Hecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:43
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/10; C08K7/12; C04; C04B; C04B26/00; C04B26/02; C04B26/04; C08K5/00; C08K5/04; C08K5/09; C04B2111/00; C04B2111/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A COMPOSITION OF MATTER COMPRISING ASBESTOS CONTAINING IRON OXIDE, A RESIN COMPONENT SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE RESINS AND VINYLIDENE CHLORIDE RESIN, AND A STABILIZER THEREFOR, THE PROPORTION OF THE ASBESTOS BEING 25-200 PARTS BY WEIGHT FOR 100 OF THE POLYVINYL CHLORIDE RESIN AND THE STABILIZER CONSISING ESSENTIALLY OF THE IRON OXIDE OF THE ASBESTOS IN CONTACT WITH FREE ACID OF THE TYPE FORMULA
Claim 2
Dependent Claim
67 words
A COMPOSITION OF MATTER COMPRISING ASBESTOS CONTAINING IRON OXIDE, A RESIN COMPONENT SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE RESINS AND VINYLIDENE CHLORIDE RESIN, AND A STABILIZER THEREFOR, THE PROPORTION OF THE ASBESTOS BEING 25-200 PARTS BY WEIGHT FOR 100 OF THE POLYVINYL CHLORIDE RESIN AND THE STABILIZER CONSISING ESSENTIALLY OF THE IRON OXIDE OF THE ASBESTOS IN CONTACT WITH FREE ACID OF THE TYPE FORMULA
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) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |