US3050087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible hose
Assignee: HK Porter Co Inc
•
Filing: 1957-03-22
•
Granted: 1962-08-21
•
Expires: 1977-03-22
Abstract
No abstract record available.
Inventors
- 👤 David M Caplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:46
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US257059A
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DE328806C
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US1926628A
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US1797193A
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US2073335A
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US2396059A
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US2524679A
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US2560369A
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FR934912A
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US2620514A
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DE839089C
Cited
US2713381A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |