Patent US1568199A successfully refreshed from Google Patents.
US2689641A
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Method of manufacturing diamond dies incorporated in shrouds and mounted in settings
Assignee: Hartford National Bank and Trust Co
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Filing: 1952-05-03
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Granted: 1954-09-21
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Expires: 1972-05-03
Abstract
No abstract record available.
Inventors
- 👤 Lips Eduard Maria Henricus
- 👤 Herman Van Zuilen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:27
CPC Classifications
B; B21; B21C; B21C3/00; B21C3/18; B21C3/02; B21C3/025; B23; B23P; B23P5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US740874A
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US978301A
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US978302A
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US1056694A
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US1551751A
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US1944759A
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US2438147A
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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) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |