Patent US2768686A successfully refreshed from Google Patents.
US2768686A
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US
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Cutter block for grooving machine
Assignee: Royal Mcbee Corp
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Filing: 1953-12-21
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Granted: 1956-10-30
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Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Feiertag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:58
CPC Classifications
G; G06; G06K; G06K21/00; G06K21/06; Y; Y10; Y10S; Y10S83/00; Y10S83/917; Y10T; Y10T83/00; Y10T83/444; Y10T83/4647; Y10T83/626; Y10T83/637; Y10T83/748; Y10T83/869; Y10T83/8737; Y10T83/8821; Y10T83/8841; Y10T83/8843; Y10T83/929; Y10T83/9309; Y10T83/9312
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE301937C
Cited
US1236508A
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US1676260A
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US2043684A
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US2405598A
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US2576211A
Cited
US2690219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |