US2675369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linked aniline resins using a diurethane as the cross-linking agent
Assignee: Wyeth Holdings LLC
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Filing: 1953-01-30
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Granted: 1954-04-13
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Expires: 1973-01-30
Abstract
No abstract record available.
Inventors
- 👤 Paul H Scrutchfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:53
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/20; C08L61/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
THE PROCESS OF PREPARING RESINOUS COMPOSITION WHICH COMPRISES REACTING ANILINE FORMALDEHYDE RESIN WITH A CROSS-LINKING COMPOUND REPRESENTED BY THE GENERAL FORMULA
Claim 2
Dependent Claim
21 words
THE PROCESS OF PREPARING RESINOUS COMPOSITION WHICH COMPRISES REACTING ANILINE FORMALDEHYDE RESIN WITH A CROSS-LINKING COMPOUND REPRESENTED BY THE GENERAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |