US2483674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston
Assignee: Caterpillar Inc
•
Filing: 1945-12-15
•
Granted: 1949-10-04
•
Expires: 1965-12-15
Abstract
No abstract record available.
Inventors
- 👤 Carl G A Rosen
- 👤 Rollin P Van Zandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:05
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F16J1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1142177A
Cited
US1228909A
Cited
US1557625A
Cited
FR27236E
Cited
US1554742A
Cited
US1554741A
Cited
US1759110A
Cited
US2387634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |