US1728899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential driving mechanism
Assignee: Individual
•
Filing: 1929-01-28
•
Granted: 1929-09-17
•
Expires: 1949-01-28
Abstract
No abstract record available.
Inventors
- 👤 Julius W Hegeler
- 👤 Holmes Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:18
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/02; F16H48/00; F16H48/05; F16H48/06; F16H48/10; F16H2048/106
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) | 1932-09-16 | 1933-03-18 | 1933-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-16 | 1937-03-18 | 1937-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-16 | 1941-03-18 | 1941-09-17 | $7700.00 | Window Closed / Lapsed |