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Patent US2363829A successfully refreshed from Google Patents.
US2363829A
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Furfuraldehyde-ketone-formaldehyde reaction product and method of making same
Assignee: Harvel Research Corp
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Filing: 1942-10-07
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Granted: 1944-11-28
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Expires: 1962-10-07
Abstract
No abstract record available.
Inventors
- 👤 Caplan Solomon
- 👤 Mortimer T Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:03
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/18; C08G2/20; C08G2/30; C08G6/00; C08G6/02; C08L; C08L61/00; C08L61/02; C08K; C08K3/00; C08K3/01; C08K3/013
Claims Analysis
Total Claims: 0
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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) | 1947-11-28 | 1948-05-29 | 1948-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-28 | 1952-05-29 | 1952-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-28 | 1956-05-29 | 1956-11-28 | $7700.00 | Window Closed / Lapsed |