Patent US2496470A successfully refreshed from Google Patents.
US2496470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum tank drain valve
Assignee: International Motors LLC
•
Filing: 1948-03-20
•
Granted: 1950-02-07
•
Expires: 1968-03-20
Abstract
No abstract record available.
Inventors
- 👤 Floyd G Hodsdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:28
CPC Classifications
A; A01; A01J; A01J5/00; A01J5/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3102; Y10T137/3105; Y10T137/3109; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/7871; Y10T137/7873
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1139647A
Cited
US1109740A
Cited
US1147702A
Cited
US1218482A
Cited
US1854306A
Cited
US2451075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |