Patent US1393968A successfully refreshed from Google Patents.
US193087A
Expired / Lapsed
US
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Improvement in meter-valves of apparatus for warming dwellings
Assignee: —
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Filing: —
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Granted: 1877-07-17
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Expires: 1894-07-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:19
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/16; F; F16; F16K; F16K1/00; F16K1/02
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) | 1880-07-16 | 1881-01-15 | 1881-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-07-16 | 1885-01-15 | 1885-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-07-16 | 1889-01-15 | 1889-07-17 | $7700.00 | Window Closed / Lapsed |