US573556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drainage-valve for radiators
Assignee: —
•
Filing: —
•
Granted: 1896-12-22
•
Expires: 1913-12-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:19
CPC Classifications
F; F02; F02B; F02B3/00; F02B3/06; F02M; F02M37/00; F02M37/0011; F02M37/0023; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/308; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7436
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) | 1899-12-22 | 1900-06-23 | 1900-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1903-12-23 | 1904-06-23 | 1904-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1907-12-23 | 1908-06-23 | 1908-12-23 | $7700.00 | Window Closed / Lapsed |