Patent US3970797A successfully refreshed from Google Patents.
Patent US556023A successfully refreshed from Google Patents.
US556023A
Expired / Lapsed
US
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Valve
Assignee: —
•
Filing: —
•
Granted: 1896-03-10
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Expires: 1913-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:01
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/08; F16K15/025; F16K15/026; F16K2200/00; F16K2200/30; F16K2200/304; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7859; Y10T137/7861; Y10T137/7904; Y10T137/7922; Y10T137/7925; Y10T137/7929; Y10T137/7937
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) | 1899-03-10 | 1899-09-09 | 1900-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1903-03-11 | 1903-09-10 | 1904-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1907-03-11 | 1907-09-10 | 1908-03-11 | $7700.00 | Window Closed / Lapsed |