US2730849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill bit grinding fixtures
Assignee: Individual
•
Filing: 1952-09-20
•
Granted: 1956-01-17
•
Expires: 1972-09-20
Abstract
No abstract record available.
Inventors
- 👤 James V Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:34
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)
US368356A
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US523897A
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US571336A
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US589398A
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US183798A
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US1020860A
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US1063391A
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US1052968A
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GB199268A
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US2074733A
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US2152729A
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US2248263A
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US2394839A
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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) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |