US3141005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing phenolformaldehyde resins
Assignee: Westinghouse Electric Corp
•
Filing: 1959-10-07
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Granted: 1964-07-14
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Expires: 1979-10-07
Abstract
No abstract record available.
Inventors
- 👤 John E Noll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:46
CPC Classifications
C; C08; C08G; C08G8/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2307588A
Cited
US2865875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |