Patent US520224A successfully refreshed from Google Patents.
US520224A
Expired / Lapsed
US
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Beer-pressure apparatus
Assignee: —
•
Filing: —
•
Granted: 1894-05-22
•
Expires: 1911-05-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:17
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; F16K24/042; F16K24/048; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/313; Y10T137/8593; Y10T137/86292; Y10T137/86324; Y10T137/86332
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) | 1897-05-21 | 1897-11-20 | 1898-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-05-22 | 1901-11-21 | 1902-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-05-22 | 1905-11-21 | 1906-05-23 | $7700.00 | Window Closed / Lapsed |