US2605248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-curable mixtures of butadieneacrylonitrile copolymers and phenol-aldehyde resins and method of making
Assignee: Uniroyal Inc
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Filing: 1950-07-07
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Granted: 1952-07-29
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Expires: 1970-07-07
Abstract
No abstract record available.
Inventors
- 👤 Charles F Fisk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:39
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/02; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A COMPOSITION OF MATTER COMPRISING A MIXTURE OF A SOLUBLE, FUSIBLE, PHENOL-ALDEHYDE RESIN, HEXAMETHYETETRAMINE AS A HARDENING AGENT THEREFOR, A BUTADIENE-ACRYLONITRILE RUBBERY COPOLYMER, SAID RESIN AND SAID RUBBERY COPOLYMER BEING MUTUALLY COMPATIBLE, AND ACCELERATOR COMPOSED OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND THE ALKALI METAL AND AMMONIUM SALTS OF BORIC ACIDS.
Claim 2
Dependent Claim
56 words
A COMPOSITION OF MATTER COMPRISING A MIXTURE OF A SOLUBLE, FUSIBLE, PHENOL-ALDEHYDE RESIN, HEXAMETHYETETRAMINE AS A HARDENING AGENT THEREFOR, A BUTADIENE-ACRYLONITRILE RUBBERY COPOLYMER, SAID RESIN AND SAID RUBBERY COPOLYMER BEING MUTUALLY COMPATIBLE, AND ACCELERATOR COMPOSED OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND THE ALKALI METAL AND AMMONIUM SALTS OF BORIC ACIDS.
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) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |