Patent US2304460A successfully refreshed from Google Patents.
US2304460A
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Assignee: ROBERT F GIFFORD
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Filing: 1940-07-02
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Granted: 1942-12-08
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Expires: 1960-07-02
Abstract
No abstract record available.
Inventors
- 👤 Francis W Kelleher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:39
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/12; F16M11/14; F16M11/20; F16M11/2092; F16M11/24; G; G01; G01B; G01B5/00; G01B5/0002; G01B5/0004; F16M2200/00; F16M2200/02; F16M2200/021; F16M2200/022; Y; Y10; Y10S; Y10S248/00; Y10S248/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-12-07 | 1946-06-08 | 1946-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-07 | 1950-06-08 | 1950-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-07 | 1954-06-08 | 1954-12-08 | $7700.00 | Window Closed / Lapsed |