Patent US861801A successfully refreshed from Google Patents.
US861801A
Expired / Lapsed
US
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Compensating direct-acting engine.
Assignee: HENRY R WORTHINGTON
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Filing: 1903-04-22
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Granted: 1907-07-30
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Expires: 1923-04-22
Abstract
No abstract record available.
Inventors
- 👤 William C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:50
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/10; F16K17/105; F02; F02D; F02D25/00; F02D25/02
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) | 1910-07-29 | 1911-01-28 | 1911-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-07-29 | 1915-01-28 | 1915-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-07-29 | 1919-01-28 | 1919-07-30 | $7700.00 | Window Closed / Lapsed |