US2993442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trip and shear mechanism
Assignee: Individual
•
Filing: 1960-01-07
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Granted: 1961-07-25
•
Expires: 1980-01-07
Abstract
No abstract record available.
Inventors
- 👤 Jr L Heath Vining
- 👤 Anton H Erickson
- 👤 Albert S Will
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:52
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/40; F42C15/18; F42C15/188; F42C15/192; F42C15/196
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |