Patent US935541A successfully refreshed from Google Patents.
US935541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve.
Assignee: Individual
•
Filing: 1908-05-15
•
Granted: 1909-09-28
•
Expires: 1928-05-15
Abstract
No abstract record available.
Inventors
- 👤 Harry Augustus Owers
- 👤 John Charles Owers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:33
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/02; F16K15/06; F16K15/063; F16K15/065; F16K2200/00; F16K2200/30; F16K2200/304; F16K2200/40; F16K2200/402; Y; Y10; Y10S; Y10S251/00; Y10S251/902; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7783; Y10T137/7837; Y10T137/7847; Y10T137/7849; Y10T137/7879; Y10T137/7904; Y10T137/7922; Y10T137/7924
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) | 1912-09-27 | 1913-03-29 | 1913-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-09-27 | 1917-03-29 | 1917-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-09-27 | 1921-03-29 | 1921-09-28 | $7700.00 | Window Closed / Lapsed |