Patent US2536017A successfully refreshed from Google Patents.
US2536017A
Expired / Lapsed
US
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Rotary tool hand piece
Assignee: SPEEDO Manufacturing CO Inc
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Filing: 1947-04-22
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Granted: 1951-01-02
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Expires: 1967-04-22
Abstract
No abstract record available.
Inventors
- 👤 Alfred A Bamberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:54
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0078; B23Q11/0092; B23B; B23B45/00; B23B45/003; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17487; Y10T279/17504; Y10T279/34; Y10T279/3431; Y10T279/3451
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320582A
Cited
US1682216A
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US1090530A
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US1382881A
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US2147915A
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US2211216A
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US2342610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |