US2598055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill grinding machine
Assignee: Individual
•
Filing: 1947-12-30
•
Granted: 1952-05-27
•
Expires: 1967-12-30
Abstract
No abstract record available.
Inventors
- 👤 Hogfors Hans Fredrik Birger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:29
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/24; B24B3/26; B24B3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US584114A
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US607306A
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US1576311A
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US1467491A
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US2202819A
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US2193186A
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US2232563A
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US2328549A
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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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |