Patent US2780273A successfully refreshed from Google Patents.
US2780273A
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Method and apparatus for making a molded flexible hose
Assignee: Individual
•
Filing: 1956-01-30
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Granted: 1957-02-05
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Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Fred T Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:51
CPC Classifications
B; B21; B21D; B21D15/00; B21D15/04; B21D15/10; B29; B29C; B29C49/00; B29C49/20; B29D; B29D23/00; B29D23/18; 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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |