Patent US2839250A successfully refreshed from Google Patents.
US2839250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice chipper
Assignee: Individual
•
Filing: 1954-10-13
•
Granted: 1958-06-17
•
Expires: 1974-10-13
Abstract
No abstract record available.
Inventors
- 👤 Emory W Brockman
- 👤 Seymour C Kantor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:05
CPC Classifications
F; F25; F25C; F25C5/00; F25C5/02; F25C5/04; F25C5/046
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US509564A
Cited
USRE20952E
Cited
US1845636A
Cited
US1987946A
Cited
US1883876A
Cited
US2225171A
Cited
US2519985A
Cited
US2539734A
Cited
US2650745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |