US2601639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve spring compressor
Assignee: KD Manufacturing Co
•
Filing: 1947-09-18
•
Granted: 1952-06-24
•
Expires: 1967-09-18
Abstract
No abstract record available.
Inventors
- 👤 Schneider Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:31
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; B25B27/26; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T29/53561; Y10T29/5357
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US282828A
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US1316753A
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US1019656A
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US1050746A
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US1138277A
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US1345651A
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US1356978A
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US1380328A
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US1873294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |