US2472288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston
Assignee: Fairbanks Morse and Co
•
Filing: 1948-01-26
•
Granted: 1949-06-07
•
Expires: 1968-01-26
Abstract
No abstract record available.
Inventors
- 👤 Louis E Endsley
- 👤 Wesley W Schettler
- 👤 Lentell John Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:23
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/16; F02F3/20; F02F3/22; F02F3/0015; F02F3/0023; F05; F05C; F05C2251/00; F05C2251/04; F05C2251/042
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) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |