US2620427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer iron
Assignee: Kaumagraph Co
•
Filing: 1949-12-24
•
Granted: 1952-12-02
•
Expires: 1969-12-24
Abstract
No abstract record available.
Inventors
- 👤 Allen W Mickel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:05
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US186179A
Cited
GB189608398A
Cited
US658601A
Cited
US1625009A
Cited
US1789464A
Cited
FR710285A
Cited
US2122554A
Cited
US2341360A
Cited
US2489643A
Cited
US2418557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |