US2931069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming flexible vacuum hose
Assignee: Lee Rubber and Tire Corp
•
Filing: 1957-03-18
•
Granted: 1960-04-05
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Mccormick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:30
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/15; B29C48/151; B29C48/03; B29C48/09; B29C48/12; Y; Y10; Y10S; Y10S264/00; Y10S264/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316052A
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FR810638A
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US2176762A
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US2266226A
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US2372162A
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GB639538A
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US2513106A
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US2620514A
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US2705041A
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US2708771A
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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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |