US28058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum
Assignee: —
•
Filing: —
•
Granted: 1860-05-01
•
Expires: 1877-05-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/24; F16K17/28; F16K17/30; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/7879; Y10T137/7888; Y10T137/789
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) | 1863-05-01 | 1863-10-31 | 1864-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1867-05-01 | 1867-10-31 | 1868-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1871-05-01 | 1871-10-31 | 1872-05-01 | $7700.00 | Window Closed / Lapsed |