Patent US891807A successfully refreshed from Google Patents.
US891807A
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Assignee: New Britain Machine Co
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Filing: 1905-10-02
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Granted: 1908-06-23
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Expires: 1925-10-02
Abstract
No abstract record available.
Inventors
- 👤 Robert S Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:04
CPC Classifications
B; B23; B23D; B23D63/00; B23D63/08; B23D63/16; B23D63/162
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) | 1911-06-23 | 1911-12-23 | 1912-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-06-23 | 1915-12-23 | 1916-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-06-23 | 1919-12-23 | 1920-06-23 | $7700.00 | Window Closed / Lapsed |