Patent US1045644A successfully refreshed from Google Patents.
US1045644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston-valve.
Assignee: Baldwin Locomotive Works
•
Filing: 1911-09-30
•
Granted: 1912-11-26
•
Expires: 1931-09-30
Abstract
No abstract record available.
Inventors
- 👤 Samuel M Vauclain
- 👤 William S Hodges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:51
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/86702
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) | 1915-11-26 | 1916-05-27 | 1916-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-11-26 | 1920-05-27 | 1920-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-11-26 | 1924-05-27 | 1924-11-26 | $7700.00 | Window Closed / Lapsed |