US835104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverizing-mill.
Assignee: ELSPASS ROLLER QUARTZ MILL AND MANUFACTURING Co
•
Filing: 1903-01-29
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Granted: 1906-11-06
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Expires: 1923-01-29
Abstract
No abstract record available.
Inventors
- 👤 John H Elspass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:18
CPC Classifications
B; B02; B02C; B02C15/00; B02C15/001
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) | 1909-11-05 | 1910-05-07 | 1910-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-11-05 | 1914-05-07 | 1914-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-11-05 | 1918-05-07 | 1918-11-06 | $7700.00 | Window Closed / Lapsed |