US2604735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for finishing annular grooves
Assignee: Micromatic Hone Corp
•
Filing: 1949-03-05
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Granted: 1952-07-29
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Expires: 1969-03-05
Abstract
No abstract record available.
Inventors
- 👤 John E Kline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:42
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/02; B24B19/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49689
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2397463A
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US2398660A
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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) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |