Patent US4690271A successfully refreshed from Google Patents.
Patent US2392869A successfully refreshed from Google Patents.
Patent US478111A successfully refreshed from Google Patents.
Patent US775240A successfully refreshed from Google Patents.
US775240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling and governing gear for pressure-engines.
Assignee: DAVY BROS Ltd
•
Filing: 1903-06-16
•
Granted: 1904-11-15
•
Expires: 1923-06-16
Abstract
No abstract record available.
Inventors
- 👤 Edward Crowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:34
CPC Classifications
F; F01; F01L; F01L29/00; F01L29/04; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19819
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1907-11-15 | 1908-05-16 | 1908-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-11-15 | 1912-05-16 | 1912-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-11-15 | 1916-05-16 | 1916-11-15 | $7700.00 | Window Closed / Lapsed |