Patent US2478132A successfully refreshed from Google Patents.
US570727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism
Assignee: —
•
Filing: —
•
Granted: 1896-11-03
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Expires: 1913-11-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:27
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/03; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7759; Y10T137/776; Y10T137/7837; Y10T137/7838; Y10T137/7846
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) | 1899-11-03 | 1900-05-05 | 1900-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1903-11-04 | 1904-05-05 | 1904-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1907-11-04 | 1908-05-05 | 1908-11-04 | $7700.00 | Window Closed / Lapsed |