US3024927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leverage system for secondary lift
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1957-07-30
•
Granted: 1962-03-13
•
Expires: 1977-07-30
Abstract
No abstract record available.
Inventors
- 👤 George F Quayle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US521256A
Cited
US1371344A
Cited
US2500815A
Cited
US2674500A
Cited
US2775356A
Cited
FR1061178A
Cited
US2849132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |