US2465309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck adapter for portable electric tools
Assignee: Singer Co
•
Filing: 1944-06-01
•
Granted: 1949-03-22
•
Expires: 1964-06-01
Abstract
No abstract record available.
Inventors
- 👤 Happe Reynold
- 👤 Edgar P Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:28
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/043; B23Q5/045; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17769; Y10T279/17803; Y10T279/17811; Y10T279/34; Y10T279/3406; Y10T279/3412; Y10T408/00; Y10T408/65; Y10T408/70; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/1966; Y10T74/19665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US666507A
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US950759A
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US1112730A
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US1550712A
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US1575953A
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US1678124A
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US1631491A
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US2291729A
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US2348266A
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US2395534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |