US2649876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency heating of glued joints
Assignee: M&M Wood Working Co
•
Filing: 1947-09-20
•
Granted: 1953-08-25
•
Expires: 1967-09-20
Abstract
No abstract record available.
Inventors
- 👤 Walter S Thompson
- 👤 Renn Harrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:28
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/62; B; B27; B27G; B27G1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2426267A
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US2492187A
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US2412982A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |