Patent US2973532A successfully refreshed from Google Patents.
US2973532A
Expired / Lapsed
US
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Automatic loading and unloading mechanism
Assignee: Osborn Manufacturing Corp
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Filing: 1958-02-27
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Granted: 1961-03-07
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Expires: 1978-02-27
Abstract
No abstract record available.
Inventors
- 👤 George F Bosl
- 👤 Gilbert J Janke
- 👤 Jr Joseph Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:54
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/08; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T408/00; Y10T408/50; Y10T408/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1511565A
Cited
US1964937A
Cited
US2101790A
Cited
US2272179A
Cited
US2581928A
Cited
US2682065A
Cited
US2860355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |