Patent US697358A successfully refreshed from Google Patents.
US697358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent-closing valve for pumps.
Assignee: Individual
•
Filing: 1901-10-05
•
Granted: 1902-04-08
•
Expires: 1921-10-05
Abstract
No abstract record available.
Inventors
- 👤 John E Penner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:19
CPC Classifications
F; F16; F16K; F16K51/00; F16L; F16L41/00; F16L41/08; F16L41/12
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) | 1905-04-07 | 1905-10-07 | 1906-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-04-07 | 1909-10-07 | 1910-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-04-07 | 1913-10-07 | 1914-04-08 | $7700.00 | Window Closed / Lapsed |