US1888656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gear
Assignee: Individual
•
Filing: 1932-05-16
•
Granted: 1932-11-22
•
Expires: 1952-05-16
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Boynton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/06; F16H48/08; F16H2048/085; F16H48/20; F16H2048/201; F16H48/38; F16H48/40
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) | 1935-11-22 | 1936-05-23 | 1936-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-22 | 1940-05-23 | 1940-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-22 | 1944-05-23 | 1944-11-22 | $7700.00 | Window Closed / Lapsed |