Patent US814648A successfully refreshed from Google Patents.
US814648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck for metal-working machines.
Assignee: Pratt and Whitney Co Inc
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Filing: 1903-06-06
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Granted: 1906-03-06
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Expires: 1923-06-06
Abstract
No abstract record available.
Inventors
- 👤 Bengt M W Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:47
CPC Classifications
B; B23; B23B; B23B13/00; B23B13/12; B23B13/123; B23B13/125; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17564; Y10T279/34; Y10T279/3425
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1909-03-05 | 1909-09-04 | 1910-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-03-05 | 1913-09-04 | 1914-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-03-05 | 1917-09-04 | 1918-03-06 | $7700.00 | Window Closed / Lapsed |