Patent US2880433A successfully refreshed from Google Patents.
US2880433A
Expired / Lapsed
US
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Machinery for cleaning hollow cylindrical objects
Assignee: Metalwash Machinery Co
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Filing: 1955-02-21
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Granted: 1959-04-07
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Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 Jack L Pettit
- 👤 Robert M Geisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:29
CPC Classifications
B; B08; B08B; B08B1/00; B08B1/30; B08B1/32; B08B1/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US689027A
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US1003223A
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US1037380A
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US1053130A
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US1173255A
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US2062106A
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US1972293A
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US2244651A
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US2262697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |