US2850849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed flute-grinding machine
Assignee: ECLIPSE COUNTERBORE Co
•
Filing: 1955-05-27
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Granted: 1958-09-09
•
Expires: 1975-05-27
Abstract
No abstract record available.
Inventors
- 👤 Seth M Babbitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:47
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/18; B24B3/00; B24B3/02; B24B3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1594407A
Cited
US1622628A
Cited
US1976818A
Cited
US1899654A
Cited
US2099674A
Cited
US2547981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |