US1953510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential friction drive
Assignee: SCHULTZ ENGINEERING Corp
•
Filing: 1930-07-14
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Granted: 1934-04-03
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Expires: 1950-07-14
Abstract
No abstract record available.
Inventors
- 👤 Schultz Rudolph Henry
- 👤 Siebert Adam James
- 👤 Borloz Leopold Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:32
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/72; F16H3/721; F16D; F16D7/00; F16D7/02; F16D7/024; F16D7/025
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) | 1937-04-02 | 1937-10-02 | 1938-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-04-02 | 1941-10-02 | 1942-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-04-02 | 1945-10-02 | 1946-04-03 | $7700.00 | Window Closed / Lapsed |