Patent US2855975A successfully refreshed from Google Patents.
US2855975A
Expired / Lapsed
US
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Method of making a flexible hose
Assignee: Individual
•
Filing: 1954-03-18
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Granted: 1958-10-14
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Expires: 1974-03-18
Abstract
No abstract record available.
Inventors
- 👤 John R Ritchie
- 👤 Jr John R Ritchie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:55
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B32; B32B; B32B27/00; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29L; B29L2023/00; B29L2023/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB429766A
Cited
US2053112A
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US2312853A
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US2478940A
Cited
US2602959A
Cited
US2564602A
Cited
US2652093A
Cited
US2676127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |