Patent US2453227A successfully refreshed from Google Patents.
Patent US2837121A successfully refreshed from Google Patents.
US2837121A
Expired / Lapsed
US
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Flexible hose and method and apparatus for making same
Assignee: Individual
•
Filing: 1956-06-07
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Granted: 1958-06-03
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Expires: 1976-06-07
Abstract
No abstract record available.
Inventors
- 👤 Fred T Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:59
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; B29C; B29C49/00; B29C49/20; F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/112; B29C2949/00; B29C2949/07; B29C2949/079; B29C2949/08; B29K; B29K2021/00; B29K2105/00; B29K2105/25; B29K2105/253; B29K2105/258; B29L; B29L2023/00; B29L2023/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1324850A
Cited
DE328806C
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US2299520A
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US2396059A
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US2430081A
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US2524679A
Cited
US2508774A
Cited
US2560369A
Cited
US2739616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |