US2612012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill point grinder
Assignee: Individual
•
Filing: 1950-10-13
•
Granted: 1952-09-30
•
Expires: 1970-10-13
Abstract
No abstract record available.
Inventors
- 👤 Becker John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:58
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/24; B24B3/247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR554052A
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US579215A
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US748651A
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US355414A
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US978851A
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US1020860A
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DE351513C
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US2098267A
Cited
US2313641A
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US2369642A
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US2371676A
Cited
GB567899A
Cited
US2471443A
Cited
US2580884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |