US2816581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvements in the hydraulic mechanism of a circular saw
Assignee: Individual
•
Filing: 1955-05-09
•
Granted: 1957-12-17
•
Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Traben Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:41
CPC Classifications
B; B27; B27B; B27B25/00; B27B25/02; B27B5/00; B27B5/29; B27B5/30; B27B5/34; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6587; Y10T83/6588; Y10T83/659; Y10T83/6635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE454133C
Cited
US2320659A
Cited
US2411623A
Cited
US2397106A
Cited
US2640513A
Cited
US2507644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |