Patent US523739A successfully refreshed from Google Patents.
US523739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Siphon
Assignee: —
•
Filing: —
•
Granted: 1894-07-31
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Expires: 1911-07-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:59
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/003; A01K63/006; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2761; Y10T137/2768; Y10T137/2842; Y10T137/2911
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) | 1897-07-30 | 1898-01-29 | 1898-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-07-31 | 1902-01-30 | 1902-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-07-31 | 1906-01-30 | 1906-08-01 | $7700.00 | Window Closed / Lapsed |