US825950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam-engine air-pump.
Assignee: Individual
•
Filing: 1905-09-28
•
Granted: 1906-07-17
•
Expires: 1925-09-28
Abstract
No abstract record available.
Inventors
- 👤 William Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:39
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/02; F04B47/04
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) | 1909-07-16 | 1910-01-15 | 1910-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-07-16 | 1914-01-15 | 1914-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-07-16 | 1918-01-15 | 1918-07-17 | $7700.00 | Window Closed / Lapsed |