US2539877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic tappet
Assignee: Eaton Corp
•
Filing: 1945-06-27
•
Granted: 1951-01-30
•
Expires: 1965-06-27
Abstract
No abstract record available.
Inventors
- 👤 Voorhies Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:48
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/245; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2147
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1798938A
Cited
US1792836A
Cited
US1977778A
Cited
US2119096A
Cited
US2145484A
Cited
US2175466A
Cited
US2203952A
Cited
US2325932A
Cited
US2386317A
Cited
US2376182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |