US1146247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for pumps.
Assignee: Individual
•
Filing: 1914-08-19
•
Granted: 1915-07-13
•
Expires: 1934-08-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas Grisenthwaite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:03
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/102; F04B39/1033; Y; Y10; Y10S; Y10S137/00; Y10S137/906; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7559
Claims Analysis
Total Claims: 0
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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) | 1918-07-12 | 1919-01-11 | 1919-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-07-12 | 1923-01-11 | 1923-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-07-12 | 1927-01-11 | 1927-07-13 | $7700.00 | Window Closed / Lapsed |