Patent US1570591A successfully refreshed from Google Patents.
US1570591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic electric machinery
Assignee: Kelvinator Inc
•
Filing: 1924-11-01
•
Granted: 1926-01-19
•
Expires: 1944-11-01
Abstract
No abstract record available.
Inventors
- 👤 William D Mercer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:56
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/14; F16H2007/0889; F16H2007/0891
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) | 1929-01-18 | 1929-07-20 | 1930-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-01-18 | 1933-07-20 | 1934-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-01-18 | 1937-07-20 | 1938-01-19 | $7700.00 | Window Closed / Lapsed |