US2641302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making flexible hose for suction cleaners
Assignee: Hoover Co
•
Filing: 1950-05-19
•
Granted: 1953-06-09
•
Expires: 1970-05-19
Abstract
No abstract record available.
Inventors
- 👤 Frank A Martin
- 👤 Kenneth R Warburton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:44
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; A; A47; A47L; A47L9/00; A47L9/24; B29K; B29K2021/00; B29K2105/00; B29K2105/06; Y; Y10; Y10S; Y10S264/00; Y10S264/52; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1280170A
Cited
US1746701A
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US2430081A
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US2455349A
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US2486387A
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US2486763A
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US2524679A
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US2560369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |