US2924191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Float apparatus
Assignee: HAMMOND IRON WORKS
•
Filing: 1959-02-12
•
Granted: 1960-02-09
•
Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Frank L Blumquist
- 👤 Ralph E Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:59
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B3/062; E02B3/064
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |