Patent US3050910A successfully refreshed from Google Patents.
US3050910A
Expired / Lapsed
US
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Automatic lapping machine
Assignee: HARRY J HARRIS
•
Filing: 1959-12-21
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Granted: 1962-08-28
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Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Lichtenfeld Hedwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:54
CPC Classifications
B; B24; B24B; B24B37/00; B24B37/04; B24B37/07; B24B37/10; B24B37/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1419740A
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US2274332A
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US2627144A
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US2722785A
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US2740237A
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US2870580A
Cited
US2883803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |