Patent US2974713A successfully refreshed from Google Patents.
US2974713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of continuously producing reinforced hose
Assignee: HK Porter Co Inc
•
Filing: 1957-06-10
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Granted: 1961-03-14
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Expires: 1977-06-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Julius C Hydrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:45
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29C; B29C48/00; B29C48/03; B29C48/09; B29C48/15; B29C48/151; B29C48/152; B29C48/153; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1261317A
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US1211370A
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US2099843A
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US2308825A
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US2327638A
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US2467642A
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US2491152A
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US2636923A
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US2659932A
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US2708176A
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US2810424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |