US2419316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticrashing device for automatic push rods
Assignee: Individual
•
Filing: 1944-06-02
•
Granted: 1947-04-22
•
Expires: 1964-06-02
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Engemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:45
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/14; F01L1/16; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1443940A
Cited
US1607128A
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US1624497A
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US1905888A
Cited
US2167895A
Cited
US2308858A
Cited
US2259905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-21 | 1950-10-21 | 1951-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-21 | 1954-10-21 | 1955-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-21 | 1958-10-21 | 1959-04-22 | $7700.00 | Window Closed / Lapsed |