US2200281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of setting diamonds for industrial purposes
Assignee: Individual
•
Filing: 1937-07-28
•
Granted: 1940-05-14
•
Expires: 1957-07-28
Abstract
No abstract record available.
Inventors
- 👤 Charles J Koebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:05
CPC Classifications
B; B23; B23P; B23P5/00; B24; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08
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) | 1943-05-14 | 1943-11-13 | 1944-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-05-14 | 1947-11-13 | 1948-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-05-14 | 1951-11-13 | 1952-05-14 | $7700.00 | Window Closed / Lapsed |