Patent US3267570A successfully refreshed from Google Patents.
Patent US981695A successfully refreshed from Google Patents.
US981695A
Expired / Lapsed
US
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Means for forming parallel faces on the ends of rails, &c.
Assignee: Evonik Operations GmbH
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Filing: 1910-04-12
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Granted: 1911-01-17
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Expires: 1930-04-12
Abstract
No abstract record available.
Inventors
- 👤 Hermann Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:45
CPC Classifications
B; B23; B23C; B23C1/00; B23C1/20; B23Q; B23Q9/00; B23Q9/0014; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306216
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) | 1914-01-16 | 1914-07-18 | 1915-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-01-16 | 1918-07-18 | 1919-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-01-16 | 1922-07-18 | 1923-01-17 | $7700.00 | Window Closed / Lapsed |