US688515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-working machine.
Assignee: Pratt and Whitney Co Inc
•
Filing: 1900-11-12
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Granted: 1901-12-10
•
Expires: 1920-11-12
Abstract
No abstract record available.
Inventors
- 👤 Bengt M W Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:31
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/28; B23C3/32; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/300056; Y10T409/300168; Y10T409/30028; Y10T409/300336; Y10T82/00; Y10T82/15; Y10T82/154; Y10T82/156; Y10T82/25; Y10T82/2531; Y10T82/2537; Y10T82/2539; Y10T82/2552; Y10T82/2554
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) | 1904-12-09 | 1905-06-10 | 1905-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-12-09 | 1909-06-10 | 1909-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-12-09 | 1913-06-10 | 1913-12-10 | $7700.00 | Window Closed / Lapsed |