US2844011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft coupling
Assignee: Deere Manufacturing Co
•
Filing: 1955-03-10
•
Granted: 1958-07-22
•
Expires: 1975-03-10
Abstract
No abstract record available.
Inventors
- 👤 Robert H Meier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:51
CPC Classifications
F; F04; F04D; F04D25/00; F04D25/02; F04D29/00; F04D29/05; F04D29/053; F04D29/054; F16; F16D; F16D1/00; F16D1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1986325A
Cited
US2010796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |