US2319142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing phenolic resin compositions
Assignee: HAVEG Corp
•
Filing: 1941-01-17
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Granted: 1943-05-11
•
Expires: 1961-01-17
Abstract
No abstract record available.
Inventors
- 👤 Hans H Lebach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:27
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08J3/248; C08J2361/00; C08J2361/04; C08J2361/06; Y; Y10; Y10T; Y10T436/00; Y10T436/13
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) | 1946-05-10 | 1946-11-09 | 1947-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-05-10 | 1950-11-09 | 1951-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-05-10 | 1954-11-09 | 1955-05-11 | $7700.00 | Window Closed / Lapsed |