Patent US2631776A successfully refreshed from Google Patents.
US2631776A
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US
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Blower casing
Assignee: PALMER Manufacturing CORP
•
Filing: 1948-05-10
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Granted: 1953-03-17
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Expires: 1968-05-10
Abstract
No abstract record available.
Inventors
- 👤 Oscar C Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:07
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/4206; F04D29/4226; F04D29/424
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1950807A
Cited
US2130327A
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US2022415A
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US2115567A
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US2225740A
Cited
US2271342A
Cited
US2296155A
Cited
US2396024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |