US2550099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible hose for suction cleaners
Assignee: Hoover Co
•
Filing: 1949-06-14
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Granted: 1951-04-24
•
Expires: 1969-06-14
Abstract
No abstract record available.
Inventors
- 👤 John E Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:49
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; A; A47; A47L; A47L9/00; A47L9/24; B29C; B29C53/00; B29C53/22; B29C53/30; B29C53/305; B29C53/56; B29C53/58; B29C53/581; B29C53/80; B29C53/84; B29C53/845; B29D23/18; C; C01; C01B; C01B11/00; C01B11/02; C01B11/022; C01B11/023; F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/115; B29K; B29K2021/00; B29K2027/00; B29K2027/06; B29K2105/00; B29K2105/06; B29K2227/00; B29K2227/06; B29L; B29L2023/00; B29L2023/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US374089A
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US1052106A
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US2171764A
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US2176762A
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US2308343A
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US2506232A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |