US2771533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste disposal device
Assignee: General Dynamics Corp
•
Filing: 1953-09-03
•
Granted: 1956-11-20
•
Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 Chester F Osberg
- 👤 Clifford B Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:49
CPC Classifications
A; A47; A47K; A47K11/00; A47K11/02; A47K11/023; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US621790A
Cited
US783474A
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US862000A
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US1092080A
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US1052315A
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US1293141A
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US1272483A
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US1290615A
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US1131188A
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US1432740A
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GB162597A
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US1527252A
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US1643206A
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US1818586A
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US1938013A
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US2376938A
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US2488405A
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US2559228A
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US2653213A
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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) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |