US3491807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice cutting machine
Assignee: Individual
•
Filing: 1967-08-15
•
Granted: 1970-01-27
•
Expires: 1987-08-15
Abstract
No abstract record available.
Inventors
- 👤 Allen Underwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:47
CPC Classifications
B; B23; B23D; B23D45/00; B23D45/10; B23D45/105; F; F25; F25C; F25C5/00; F25C5/14; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2074; Y10T83/2083; Y10T83/647; Y10T83/658; Y10T83/6584; Y10T83/727; Y10T83/741; Y10T83/744; Y10T83/745
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US518655A
Cited
US995465A
Cited
US1504130A
Cited
US1490308A
Cited
US1866941A
Cited
US2080452A
Cited
US2664926A
Cited
US2679919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |