US2657339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing
Assignee: —
•
Filing: —
•
Granted: 1953-10-27
•
Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:14
CPC Classifications
B; B05; B05B; B05B5/00; B05B5/025; B05B5/03; B05B5/032; A; A01; A01M; A01M9/00; B05B7/00; B05B7/14; B05B7/1404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1221505A
Cited
US1446778A
Cited
US1723955A
Cited
US2114682A
Cited
US2165946A
Cited
US2247963A
Cited
US2396533A
Cited
US2477947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |