US2622252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw threading apparatus
Assignee: Georg Fischer AG
•
Filing: 1946-12-18
•
Granted: 1952-12-23
•
Expires: 1966-12-18
Abstract
No abstract record available.
Inventors
- 👤 Wernli Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:27
CPC Classifications
B; B23; B23G; B23G5/00; B23G5/08; Y; Y10; Y10T; Y10T408/00; Y10T408/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US153770A
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US270409A
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US280575A
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GB189517434A
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US948102A
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US1053482A
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US1190768A
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US1746266A
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US1747418A
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US1969854A
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US2046991A
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GB571140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |