Patent US2224600A successfully refreshed from Google Patents.
US2224600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed regulator
Assignee: Individual
•
Filing: 1939-09-23
•
Granted: 1940-12-10
•
Expires: 1959-09-23
Abstract
No abstract record available.
Inventors
- 👤 George E Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:11
CPC Classifications
F; F02; F02D; F02D9/00; B; B60; B60K; B60K31/00; G; G05; G05G; G05G5/00; G05G5/06; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0233; G05G2700/00; G05G2700/04; G05G2700/08; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-12-10 | 1944-06-10 | 1944-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-10 | 1948-06-10 | 1948-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-10 | 1952-06-10 | 1952-12-10 | $7700.00 | Window Closed / Lapsed |