US2606887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified phenol-furfural molding compositions and process of making same
Assignee: Imperial Chemical Industries Ltd
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Filing: 1949-04-05
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Granted: 1952-08-12
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Expires: 1969-04-05
Abstract
No abstract record available.
Inventors
- 👤 Pearce Stephen Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:36
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A NEW AND IMPROVED TWO-STAGE PHENOLFURFURAL MOLDING COMPOSITION COMPRISING AN IN TIMATE MIXTURE OF A FUSIBLE, SOLUBLE PHENOL-/ FURFURAL RESIN, HEXAMETHYLENE TETRAMINE AND BORIC ACID.
Claim 2
Dependent Claim
25 words
A NEW AND IMPROVED TWO-STAGE PHENOLFURFURAL MOLDING COMPOSITION COMPRISING AN IN TIMATE MIXTURE OF A FUSIBLE, SOLUBLE PHENOL-/ FURFURAL RESIN, HEXAMETHYLENE TETRAMINE AND BORIC ACID.
References Cited (Backward Citations)
US2363893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |