US2804320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose coupling with rigid threads molded therein
Assignee: Heli Coil Corp
•
Filing: 1954-01-27
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Granted: 1957-08-27
•
Expires: 1974-01-27
Abstract
No abstract record available.
Inventors
- 👤 Robert D Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:12
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/24; A47L9/242; F; F16; F16L; F16L33/00; F16L33/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT66805B
Cited
US1378015A
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US1985494A
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US2110459A
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US2296198A
Cited
US2311329A
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US2480966A
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FR980989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |