US2471631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furfuryl alcohol-phenol aldehyde resinous products and method of making the same
Assignee: HAVEG Corp
•
Filing: 1944-09-07
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Granted: 1949-05-31
•
Expires: 1964-09-07
Abstract
No abstract record available.
Inventors
- 👤 Hans H Lebach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:44
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/025; C08G16/0256; C08G16/0262
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2366049A
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US2058597A
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US2345966A
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US2383790A
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US2300812A
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US2335701A
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US2399055A
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US2334526A
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US2343973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |