US1848182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of setting diamonds
Assignee: KOEBEL WAGNER DIAMOND CORP
•
Filing: 1930-06-30
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Granted: 1932-03-08
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Expires: 1950-06-30
Abstract
No abstract record available.
Inventors
- 👤 Charles J Koebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:54
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/46; B; B23; B23P; B23P5/00; Y; Y10; Y10S; Y10S76/00; Y10S76/05; Y10T; Y10T407/00; Y10T407/26
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) | 1935-03-08 | 1935-09-07 | 1936-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-08 | 1939-09-07 | 1940-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-08 | 1943-09-07 | 1944-03-08 | $7700.00 | Window Closed / Lapsed |