Patent US2509461A successfully refreshed from Google Patents.
US2509461A
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Seal
Assignee: Chicago Rawhide Manufacturing Co Inc
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Filing: 1946-03-22
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Granted: 1950-05-30
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Expires: 1966-03-22
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Ulseth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:16
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3248; F16J15/3252; F16J15/3256; F16J15/3264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1896378A
Cited
US2009281A
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US2089462A
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DE637097C
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US2171968A
Cited
US2266175A
Cited
US2320794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |