US2800004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multipart articulated shaft, particularly for agricultural machinery, which is variable in length during service and provided with a safety catch
Assignee: Individual
•
Filing: 1954-01-13
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Granted: 1957-07-23
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Expires: 1974-01-13
Abstract
No abstract record available.
Inventors
- 👤 Schroter Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:00
CPC Classifications
A; A01; A01B; A01B71/00; A01B71/08; A01B61/00; A01B61/02; A01B61/025; F; F16; F16D; F16D3/00; F16D3/02; F16D3/06; F16D7/00; F16D7/04; F16D7/048; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |