Patent US657891A successfully refreshed from Google Patents.
US657891A
Expired / Lapsed
US
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Fitting for steam heating apparatus.
Assignee: Individual
•
Filing: 1900-07-17
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Granted: 1900-09-11
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Expires: 1920-07-17
Abstract
No abstract record available.
Inventors
- 👤 James A Donnelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:42
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/08; F16K17/085; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836
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) | 1903-09-11 | 1904-03-12 | 1904-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-09-11 | 1908-03-12 | 1908-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-09-11 | 1912-03-12 | 1912-09-11 | $7700.00 | Window Closed / Lapsed |