US1339128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic check-valve mechanism
Assignee: Individual
•
Filing: 1918-11-04
•
Granted: 1920-05-04
•
Expires: 1938-11-04
Abstract
No abstract record available.
Inventors
- 👤 Mark B Nye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:36
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/03; F16K2200/00; F16K2200/10; F16K2200/101; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2557; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7791; Y10T137/7837; Y10T137/7866; Y10T137/7898; Y10T137/7903
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) | 1923-05-04 | 1923-11-03 | 1924-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-05-04 | 1927-11-03 | 1928-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-05-04 | 1931-11-03 | 1932-05-04 | $7700.00 | Window Closed / Lapsed |