Patent US4449443A successfully refreshed from Google Patents.
Patent US2416760A successfully refreshed from Google Patents.
US2416760A
Expired / Lapsed
US
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Fluid cooling apparatus
Assignee: Worthington Pump and Machinery Corp
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Filing: 1943-07-01
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Granted: 1947-03-04
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Expires: 1963-07-01
Abstract
No abstract record available.
Inventors
- 👤 Matthew M Lawler
- 👤 Paul F Bahler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:47
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/16; F28D7/163; C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10S585/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US955483A
Cited
US1004087A
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US1552526A
Cited
GB318597A
Cited
US2238802A
Cited
US2380245A
Cited
US2308786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-03 | 1950-09-02 | 1951-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-03 | 1954-09-02 | 1955-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-03 | 1958-09-02 | 1959-03-04 | $7700.00 | Window Closed / Lapsed |