Patent US543773A successfully refreshed from Google Patents.
US543773A
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US
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Boiler connection for valves
Assignee: —
•
Filing: —
•
Granted: 1895-07-30
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Expires: 1912-07-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:44
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02; B01D35/04; B01D35/043; F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/044; F16K15/18; F16K15/182; F16K15/1823; Y; Y10; Y10S; Y10S137/00; Y10S137/901; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7877; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/7928
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) | 1898-07-29 | 1899-01-28 | 1899-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1902-07-30 | 1903-01-29 | 1903-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1906-07-30 | 1907-01-29 | 1907-07-31 | $7700.00 | Window Closed / Lapsed |