Patent US126522A successfully refreshed from Google Patents.
US126522A
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Improvement in devices for boring spherical seats
Assignee: —
•
Filing: —
•
Granted: 1872-05-07
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Expires: 1889-05-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:36
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/0018; B23B51/0045; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T409/00; Y10T409/30; Y10T409/306216; Y10T409/306384; Y10T82/00; Y10T82/12; Y10T82/125; Y10T82/128; Y10T82/25; Y10T82/2522
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) | 1875-05-07 | 1875-11-06 | 1876-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-05-07 | 1879-11-06 | 1880-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-05-07 | 1883-11-06 | 1884-05-07 | $7700.00 | Window Closed / Lapsed |