US2548848A
Expired / Lapsed
US
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Assignee: WILLIAM C UPHOFF
•
Filing: 1945-10-22
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Granted: 1951-04-10
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Expires: 1965-10-22
Abstract
No abstract record available.
Inventors
- 👤 Herman H Stechmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:30
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/08; B23Q11/0875
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US509864A
Cited
US1314967A
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US680345A
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US955897A
Cited
US1676311A
Cited
US1938786A
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US1991177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |