Patent US996435A successfully refreshed from Google Patents.
US996435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve-grinder.
Assignee: Individual
•
Filing: —
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Granted: 1911-06-27
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Expires: 1928-06-27
Abstract
No abstract record available.
Inventors
- 👤 Elvin E Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:59
CPC Classifications
B; B24; B24B; B24B15/00; B24B15/08; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18416
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) | 1914-06-26 | 1914-12-26 | 1915-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-06-26 | 1918-12-26 | 1919-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-06-26 | 1922-12-26 | 1923-06-27 | $7700.00 | Window Closed / Lapsed |