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Patent US2928264A successfully refreshed from Google Patents.
US2928264A
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Assignee: Hudson Engineering Corp
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Filing: 1957-03-14
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Granted: 1960-03-15
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Expires: 1977-03-14
Abstract
No abstract record available.
Inventors
- 👤 John L Goldsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:50
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1504626A
Cited
US1376107A
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US1573961A
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US1947052A
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US2499093A
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US2633719A
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US2627733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |