US2440550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor-conveyed implement and hitch therefor
Assignee: HOWARD B RAPP AND SALLY RAPP
•
Filing: 1944-09-05
•
Granted: 1948-04-27
•
Expires: 1964-09-05
Abstract
No abstract record available.
Inventors
- 👤 Charles H Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:07
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/08; B62D49/085; A; A01; A01B; A01B23/00; A01B23/04; A01B23/046; B62D53/00; B62D53/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB119034A
Cited
US2123555A
Cited
US2105117A
Cited
US2223002A
Cited
US2247680A
Cited
GB539003A
Cited
US2273875A
Cited
US2414114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-27 | 1951-10-27 | 1952-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-27 | 1955-10-27 | 1956-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-27 | 1959-10-27 | 1960-04-27 | $7700.00 | Window Closed / Lapsed |