US2551631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making suction cleaner hose
Assignee: Hoover Co
•
Filing: 1947-11-22
•
Granted: 1951-05-08
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Expires: 1967-11-22
Abstract
No abstract record available.
Inventors
- 👤 John W Pearce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:16
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C43/00; B29C43/22; B29C65/00; B29C65/02; B29C65/04; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/433; B29C66/45; B29C66/49; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5227; B29C66/52271; B29C66/52272; B29C66/53; B29C66/532; B29C66/5326; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/81; B29C66/814; B29C66/8145; B29C66/81463; B29C66/816; B29C66/8161; B29C66/84; B29C66/843; B29C66/8432; B29D; B29D23/00; B29D23/18; B32; B32B; B32B27/00; B29C66/53261; B29C66/71; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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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) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |