US3021723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spindle locking means for portable tools
Assignee: Diehl Manufacturing Co
•
Filing: 1958-09-10
•
Granted: 1962-02-20
•
Expires: 1978-09-10
Abstract
No abstract record available.
Inventors
- 👤 Happe Reynold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:41
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0078; B23Q11/0092; Y; Y10; Y10S; Y10S408/00; Y10S408/71; Y10T; Y10T279/00; Y10T279/34; Y10T279/3431; Y10T279/3451; Y10T408/00; Y10T408/65; Y10T74/00; Y10T74/19; Y10T74/19637; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US447607A
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US1330860A
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US1393051A
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GB220855A
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GB260558A
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US2407696A
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US2481638A
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US2716555A
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US2790365A
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US2876369A
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US2777340A
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US2872197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |