US666264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for explosion-engines.
Assignee: ANNIE B DENISON
•
Filing: 1898-03-14
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Granted: 1901-01-22
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Expires: 1918-03-14
Abstract
No abstract record available.
Inventors
- 👤 Julian F Denison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:02
CPC Classifications
F; F01; F01L; F01L7/00; F01L7/06; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
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) | 1904-01-22 | 1904-07-23 | 1905-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-01-22 | 1908-07-23 | 1909-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-01-22 | 1912-07-23 | 1913-01-22 | $7700.00 | Window Closed / Lapsed |