Patent US2992339A successfully refreshed from Google Patents.
US825591A
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US
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Assignee: Individual
•
Filing: 1905-09-14
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Granted: 1906-07-10
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Expires: 1925-09-14
Abstract
No abstract record available.
Inventors
- 👤 Frank Engelhard
- 👤 Frederick H Engelhard
- 👤 William A Engelhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:30
CPC Classifications
C; C25; C25D; C25D17/00; C25D17/06; C25B; C25B9/00; C25B9/60; C25B9/65
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) | 1909-07-09 | 1910-01-08 | 1910-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-07-09 | 1914-01-08 | 1914-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-07-09 | 1918-01-08 | 1918-07-10 | $7700.00 | Window Closed / Lapsed |