US2566460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve spring compressing tool
Assignee: Individual
•
Filing: 1947-07-25
•
Granted: 1951-09-04
•
Expires: 1967-07-25
Abstract
No abstract record available.
Inventors
- 👤 Michael P Mihalic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:17
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; Y10T29/53613; Y10T29/53622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1368501A
Cited
US1405253A
Cited
US1433131A
Cited
US1525894A
Cited
US1469076A
Cited
US1695610A
Cited
GB317580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |