US842993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of attaching an abrading-surface to metal.
Assignee: Individual
•
Filing: 1905-06-09
•
Granted: 1907-02-05
•
Expires: 1925-06-09
Abstract
No abstract record available.
Inventors
- 👤 Samuel B Archer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:11
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1463; Y; Y10; Y10S; Y10S76/00; Y10S76/12
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) | 1910-02-04 | 1910-08-06 | 1911-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-02-04 | 1914-08-06 | 1915-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-02-04 | 1918-08-06 | 1919-02-05 | $7700.00 | Window Closed / Lapsed |