US2831590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading apparatus for vehicles
Assignee: Individual
•
Filing: 1955-03-29
•
Granted: 1958-04-22
•
Expires: 1975-03-29
Abstract
No abstract record available.
Inventors
- 👤 Greenfield Samuel
- 👤 Raymond B Roemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:51
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1052096A
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US1945533A
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US1943398A
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GB601569A
Cited
US2470340A
Cited
US2573193A
Cited
US2565792A
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US2652163A
Cited
US2703227A
Cited
US2713431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |