US1182858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-release mechanism for well-pumps.
Assignee: FRANK F SEPPI
•
Filing: 1915-03-15
•
Granted: 1916-05-09
•
Expires: 1935-03-15
Abstract
No abstract record available.
Inventors
- 👤 Homer J Risden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:07
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/8593; Y10T137/85978; Y10T137/86179
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) | 1919-05-09 | 1919-11-08 | 1920-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-05-09 | 1923-11-08 | 1924-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-05-09 | 1927-11-08 | 1928-05-09 | $7700.00 | Window Closed / Lapsed |