Patent US1139221A successfully refreshed from Google Patents.
US1139221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stop-valve.
Assignee: Individual
•
Filing: 1914-01-19
•
Granted: 1915-05-11
•
Expires: 1934-01-19
Abstract
No abstract record available.
Inventors
- 👤 William G Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:41
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/8158; Y10T137/8326; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86743; Y10T137/86751
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) | 1918-05-10 | 1918-11-09 | 1919-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-05-10 | 1922-11-09 | 1923-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-05-10 | 1926-11-09 | 1927-05-11 | $7700.00 | Window Closed / Lapsed |