US1339811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve-regulating means
Assignee: Imperial Brass Manufacturing Co
•
Filing: 1919-05-28
•
Granted: 1920-05-11
•
Expires: 1939-05-28
Abstract
No abstract record available.
Inventors
- 👤 August C Dobrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:00
CPC Classifications
G; G05; G05G; G05G5/00; G05G5/12; G05G5/20; G05G5/24; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20426
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) | 1923-05-11 | 1923-11-10 | 1924-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-05-11 | 1927-11-10 | 1928-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-05-11 | 1931-11-10 | 1932-05-11 | $7700.00 | Window Closed / Lapsed |