US127038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in flexible lip-formed valves
Assignee: —
•
Filing: —
•
Granted: 1872-05-21
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Expires: 1889-05-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:02
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/102; F04B39/1033; Y; Y10; 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) | 1875-05-21 | 1875-11-20 | 1876-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-05-21 | 1879-11-20 | 1880-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-05-21 | 1883-11-20 | 1884-05-21 | $7700.00 | Window Closed / Lapsed |