US640688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed-governor attachment for electrical apparatus.
Assignee: THOMAS MCEWAN JR
•
Filing: 1899-04-07
•
Granted: 1900-01-02
•
Expires: 1919-04-07
Abstract
No abstract record available.
Inventors
- 👤 James H Mcgurty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:36
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/10; F16F9/12; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20924
Claims Analysis
Total Claims: 0
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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) | 1903-01-02 | 1903-07-04 | 1904-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-01-02 | 1907-07-04 | 1908-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-01-02 | 1911-07-04 | 1912-01-03 | $7700.00 | Window Closed / Lapsed |