US2975809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading and unloading apparatus
Assignee: BAKER BROTHERS Inc
•
Filing: 1956-12-10
•
Granted: 1961-03-21
•
Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Lawrence D Ninneman
- 👤 Robert M Crayford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:36
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/30; B30B15/302
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2030951A
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US2651827A
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US2783872A
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US2879810A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |