Patent US1369209A successfully refreshed from Google Patents.
US1369209A
Expired / Lapsed
US
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Dental amalgam-machine
Assignee: Individual
•
Filing: 1919-10-25
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Granted: 1921-02-22
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Expires: 1939-10-25
Abstract
No abstract record available.
Inventors
- 👤 Alfred G Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:36
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/60; A61C5/68; B; B01; B01F; B01F29/00; B01F29/80
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) | 1924-02-22 | 1924-08-23 | 1925-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-02-22 | 1928-08-23 | 1929-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-02-22 | 1932-08-23 | 1933-02-22 | $7700.00 | Window Closed / Lapsed |