Patent US817013A successfully refreshed from Google Patents.
US817013A
Expired / Lapsed
US
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Surfacing and polishing machine.
Assignee: Individual
•
Filing: 1905-08-12
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Granted: 1906-04-03
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Expires: 1925-08-12
Abstract
No abstract record available.
Inventors
- 👤 Aaron T Spence
- 👤 John H Prugh
- 👤 Samuel B Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:34
CPC Classifications
B; B24; B24B; B24B7/00; B24B7/10; B24B7/18
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) | 1909-04-02 | 1909-10-02 | 1910-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-04-02 | 1913-10-02 | 1914-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-04-02 | 1917-10-02 | 1918-04-03 | $7700.00 | Window Closed / Lapsed |