US2495081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packless valve
Assignee: Individual
•
Filing: 1944-02-19
•
Granted: 1950-01-17
•
Expires: 1964-02-19
Abstract
No abstract record available.
Inventors
- 👤 Jesse B Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:19
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/12; Y; Y10; Y10T; Y10T137/00; Y10T137/3367; Y10T137/4238; Y10T137/4358; Y10T137/4442; Y10T137/4456; Y10T137/4621; Y10T137/4628; Y10T137/8158; Y10T137/8225; Y10T137/8593; Y10T137/87917; Y10T137/87981; Y10T137/88046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189908985A
Cited
US1182737A
Cited
US1284833A
Cited
US1387446A
Cited
US1572922A
Cited
US1636661A
Cited
US1485792A
Cited
US1826941A
Cited
US2200310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |