Patent US1687581A successfully refreshed from Google Patents.
US2644196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax slabbing method
Assignee: L SONNEBORN SONS Inc
•
Filing: 1949-12-10
•
Granted: 1953-07-07
•
Expires: 1969-12-10
Abstract
No abstract record available.
Inventors
- 👤 Angelo J Bevevino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:32
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/40; B; B29; B29C; B29C53/00; B29C53/32; B29C67/00; B29C67/24; B29C67/241; B29C2793/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |