US2011147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft connecting mechanism
Assignee: Individual
•
Filing: 1929-04-18
•
Granted: 1935-08-13
•
Expires: 1949-04-18
Abstract
No abstract record available.
Inventors
- 👤 Otto K Haselau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:39
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/04; F16D3/16; F16D3/26; F16D3/30; F16D3/34
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) | 1938-08-12 | 1939-02-11 | 1939-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-08-12 | 1943-02-11 | 1943-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-08-12 | 1947-02-11 | 1947-08-13 | $7700.00 | Window Closed / Lapsed |