US1901242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular chaser grinding gauge
Assignee: Devlieg Bullard Inc
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Filing: 1931-06-09
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Granted: 1933-03-14
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Expires: 1951-06-09
Abstract
No abstract record available.
Inventors
- 👤 William J Hogg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:24
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/09; B23Q17/0904; B23Q17/0919; B23Q17/0933
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) | 1936-03-13 | 1936-09-12 | 1937-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-03-13 | 1940-09-12 | 1941-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-03-13 | 1944-09-12 | 1945-03-14 | $7700.00 | Window Closed / Lapsed |