US1826941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for preventing leakage in valves
Assignee: LA MONT Corp
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Filing: 1926-04-02
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Granted: 1931-10-13
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Expires: 1946-04-02
Abstract
No abstract record available.
Inventors
- 👤 Mont Walter Douglas La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:07
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/0254; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/428; Y10T137/4358; Y10T137/4442; Y10T137/5762; Y10T137/6198; Y10T137/6416; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7791; Y10T137/8593; Y10T137/86187; Y10T137/8622; Y10T137/87917
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) | 1934-10-12 | 1935-04-13 | 1935-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-10-12 | 1939-04-13 | 1939-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-10-12 | 1943-04-13 | 1943-10-13 | $7700.00 | Window Closed / Lapsed |