US1560672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential
Assignee: Individual
•
Filing: 1924-09-17
•
Granted: 1925-11-10
•
Expires: 1944-09-17
Abstract
No abstract record available.
Inventors
- 👤 Egbert O Doak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:48
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/12; F16H48/16; F16D; F16D41/00; F16D41/12; F16D41/16; F16H48/38; F16H48/42; F16H2048/423; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19005
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) | 1928-11-09 | 1929-05-11 | 1929-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-11-09 | 1933-05-11 | 1933-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-11-09 | 1937-05-11 | 1937-11-10 | $7700.00 | Window Closed / Lapsed |