US2619661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement sole attaching machine using high-frequency
Assignee: United Shoe Machinery Corp
•
Filing: 1950-01-19
•
Granted: 1952-12-02
•
Expires: 1970-01-19
Abstract
No abstract record available.
Inventors
- 👤 George T Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:58
CPC Classifications
A; A43; A43D; A43D25/00; A43D25/20; Y; Y10; Y10S; Y10S264/00; Y10S264/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB441496A
Cited
US2301205A
Cited
US2419307A
Cited
US2401277A
Cited
US2379059A
Cited
US2473188A
Cited
US2467285A
Cited
US2442451A
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 |