US2497295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for manipulating sand and other pulverulent substances
Assignee: POMPES NOEL LIVERDUN SOC
•
Filing: 1947-07-24
•
Granted: 1950-02-14
•
Expires: 1967-07-24
Abstract
No abstract record available.
Inventors
- 👤 Cavallier Jean Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:43
CPC Classifications
B; B65; B65G; B65G33/00; B65G33/24; B65G2201/00; B65G2201/04; B65G2201/045
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US277319A
Cited
US548521A
Cited
US900787A
Cited
US992629A
Cited
US1222584A
Cited
US1858796A
Cited
US2014636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |