Patent US1708798A successfully refreshed from Google Patents.
US1708798A
Expired / Lapsed
US
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Portable boring and grinding machine
Assignee: Simplicity Engine & Manufacturing Co
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Filing: 1922-03-02
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Granted: 1929-04-09
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Expires: 1942-03-02
Abstract
No abstract record available.
Inventors
- 👤 Nels A Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:18
CPC Classifications
B; B23; B23Q; B23Q9/00; B23Q2709/00; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5104; Y10T29/5105; Y10T29/5108; Y10T408/00; Y10T408/31; Y10T408/65; Y10T408/675; Y10T408/6793
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) | 1932-04-08 | 1932-10-08 | 1933-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-04-08 | 1936-10-08 | 1937-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-04-08 | 1940-10-08 | 1941-04-09 | $7700.00 | Window Closed / Lapsed |