Patent US2809393A successfully refreshed from Google Patents.
US2809393A
Expired / Lapsed
US
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Apparatus for making plastic hose
Assignee: HK Porter Co Inc
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Filing: 1955-06-23
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Granted: 1957-10-15
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Expires: 1975-06-23
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand D Hauptman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:15
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/335; B29C48/336; B29C48/03; B29C48/09; B29C48/10; B29C48/16; B29C48/18; B29C48/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB423496A
Cited
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US2519375A
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US2528200A
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US2574555A
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US2690769A
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US2616126A
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US2742669A
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US2683897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |