Patent US1724699A successfully refreshed from Google Patents.
US1724699A
Expired / Lapsed
US
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Machine for grinding hobs, worms, and the like
Assignee: Schneider Electric Buildings Americas Inc
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Filing: 1921-02-21
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Granted: 1929-08-13
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Expires: 1941-02-21
Abstract
No abstract record available.
Inventors
- 👤 Edgar John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:57
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/02; B24B3/12
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) | 1932-08-12 | 1933-02-11 | 1933-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-08-12 | 1937-02-11 | 1937-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-08-12 | 1941-02-11 | 1941-08-13 | $7700.00 | Window Closed / Lapsed |