Patent US2221220A successfully refreshed from Google Patents.
US2787477A
Expired / Lapsed
US
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Folding drawbar and transport
Assignee: Individual
•
Filing: 1954-10-19
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Granted: 1957-04-02
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Expires: 1974-10-19
Abstract
No abstract record available.
Inventors
- 👤 Edward G Melroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:06
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/20; A01B39/24; A01B73/00; A01B73/02; A01B73/06; A01B73/067
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) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |