US2731866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Erickson
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:33
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/10; B25B13/12; B25B13/14; B25B13/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US733525A
Cited
GB190825387A
Cited
US1134499A
Cited
US1362481A
Cited
US1557864A
Cited
US2386444A
Cited
US2470007A
Cited
US2592781A
Cited
US2655065A
Cited
US2630037A
Cited
US2635498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |