US2420360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor governor
Assignee: Airco Inc
•
Filing: 1944-04-25
•
Granted: 1947-05-13
•
Expires: 1964-04-25
Abstract
No abstract record available.
Inventors
- 👤 George M Deming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:48
CPC Classifications
G; G05; G05D; G05D13/00; G05D13/08; F; F03; F03G; F03G1/00; F03G1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US815390A
Cited
GB190622494A
Cited
US980918A
Cited
US1453119A
Cited
US2085084A
Cited
US2182076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |