Patent US1694633A successfully refreshed from Google Patents.
US1694633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for making gratings
Assignee: Individual
•
Filing: 1927-03-18
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Granted: 1928-12-11
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Expires: 1947-03-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:06
CPC Classifications
B; B21; B21K; B21K23/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/4962; Y10T29/51; Y10T29/5116; Y10T29/53; Y10T29/53709
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) | 1931-12-11 | 1932-06-11 | 1932-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-12-11 | 1936-06-11 | 1936-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-12-11 | 1940-06-11 | 1940-12-11 | $7700.00 | Window Closed / Lapsed |