US2633229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective system
Assignee: Joy Manufacturing Co
•
Filing: 1950-05-26
•
Granted: 1953-03-31
•
Expires: 1970-05-26
Abstract
No abstract record available.
Inventors
- 👤 James E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:45
CPC Classifications
B; B65; B65G; B65G43/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1545886A
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US1602993A
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US2265341A
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US2299787A
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US2383909A
Cited
US2492739A
Cited
US2575053A
Cited
US2478147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |