US2730823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozer blade
Assignee: Individual
•
Filing: 1951-07-30
•
Granted: 1956-01-17
•
Expires: 1971-07-30
Abstract
No abstract record available.
Inventors
- 👤 John F Cassidy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:51
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609; E02F3/7613
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075482A
Cited
US2108466A
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US2126791A
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US2187072A
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US2185015A
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US2232672A
Cited
US2347290A
Cited
GB638455A
Cited
US2636289A
Cited
US2681518A
Cited
US2687586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |