Patent US2739501A successfully refreshed from Google Patents.
US2739501A
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US
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Assignee: Individual
•
Filing: 1952-05-08
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Granted: 1956-03-27
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Expires: 1972-05-08
Abstract
No abstract record available.
Inventors
- 👤 Becker Hans
- 👤 Noppen Theo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:02
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; B23Q35/101; B23Q35/108; Y; Y10; Y10T; Y10T82/00; Y10T82/13; Y10T82/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1499633A
Cited
DE573712C
Cited
US1918138A
Cited
US1894899A
Cited
US2080158A
Cited
US2109454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |