Patent US2891581A successfully refreshed from Google Patents.
US2891581A
Expired / Lapsed
US
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Flexible hose and method of making the same
Assignee: Individual
•
Filing: 1955-01-26
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Granted: 1959-06-23
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Expires: 1975-01-26
Abstract
No abstract record available.
Inventors
- 👤 Roberts Fred Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:49
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/115; B29K; B29K2021/00; F02; F02M; F02M35/00; F02M35/10; F02M35/10091; F02M35/10137; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US882292A
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US1937069A
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US2097862A
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US2272704A
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US2321064A
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US2444988A
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US2508774A
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US2688343A
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US2648720A
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US2678666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |