US2830924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of laminating a thermosetting resin and a ligno-cellulose sheet material to overcome warpage
Assignee: Individual
•
Filing: 1955-03-17
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Granted: 1958-04-15
•
Expires: 1975-03-17
Abstract
No abstract record available.
Inventors
- 👤 Witt Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:28
CPC Classifications
B; B32; B32B; B32B27/00; B27; B27D; B27D1/00; B27D1/04; B27D1/06; B27N; B27N3/00; B27N3/06; B27N3/08; B27N3/20; B27N3/203
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1129933A
Cited
US1851177A
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US1942251A
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US2314797A
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US2418233A
Cited
US2478943A
Cited
GB654645A
Cited
US2562711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |