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US2709321A
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US
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Lapping machine
Assignee: Saint Gobain Abrasives Inc
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Filing: 1951-03-14
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Granted: 1955-05-31
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Expires: 1971-03-14
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Indge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:27
CPC Classifications
B; B24; B24B; B24B37/00; B24B37/04; B24B37/07; B24B37/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1262529A
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US1541001A
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US2103984A
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US2309080A
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US2369107A
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US2408334A
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US2401953A
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US2597382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |