US2510978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical power unit
Assignee: Individual
•
Filing: 1947-11-20
•
Granted: 1950-06-13
•
Expires: 1967-11-20
Abstract
No abstract record available.
Inventors
- 👤 Paul C Hutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:02
CPC Classifications
F; F03; F03G; F03G1/00; F03G1/02; F03G1/024; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1532; Y10T74/1542; Y10T74/1547; Y10T74/1552; Y10T74/18; Y10T74/18056; Y10T74/18208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1283599A
Cited
US1503787A
Cited
US1685411A
Cited
US1961243A
Cited
US2259964A
Cited
US2429040A
Cited
US2420825A
Cited
US2419045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |