US2520719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blanching apparatus
Assignee: DAVID R MCKINLEY
•
Filing: 1946-08-19
•
Granted: 1950-08-29
•
Expires: 1966-08-19
Abstract
No abstract record available.
Inventors
- 👤 Walter C Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:15
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US649029A
Cited
US1076852A
Cited
US1109976A
Cited
US1417182A
Cited
US1487169A
Cited
US1487170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |