Patent US2463766A successfully refreshed from Google Patents.
US2463766A
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US
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Compressor
Assignee: DAPCO PRODUCTS Inc
•
Filing: 1944-01-05
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Granted: 1949-03-08
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Expires: 1964-01-05
Abstract
No abstract record available.
Inventors
- 👤 Harold F Hadley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:25
CPC Classifications
F; F04; F04B; F04B45/00; F04B45/04; F04B39/00; F04B39/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US737737A
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US760843A
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US1895692A
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US2018111A
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US1976098A
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US2063728A
Cited
US2042510A
Cited
US2289624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |