US815135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary engine.
Assignee: Individual
•
Filing: 1905-07-27
•
Granted: 1906-03-13
•
Expires: 1925-07-27
Abstract
No abstract record available.
Inventors
- 👤 William Wyand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:23
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/02; A61C1/05; F; F04; F04D; F04D13/00; F04D13/02; F04D13/021; F04D13/024
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) | 1909-03-12 | 1909-09-11 | 1910-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-03-12 | 1913-09-11 | 1914-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-03-12 | 1917-09-11 | 1918-03-13 | $7700.00 | Window Closed / Lapsed |