US2473506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positioning device
Assignee: Bullard Co
•
Filing: 1945-01-06
•
Granted: 1949-06-21
•
Expires: 1965-01-06
Abstract
No abstract record available.
Inventors
- 👤 Edward P Bullard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:41
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q35/00; B23Q35/02; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5617
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1920596A
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US2005822A
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US1956110A
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US2068199A
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US2165226A
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US2234009A
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US2239882A
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US2352183A
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US2310720A
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US2370286A
Cited
US2391470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |