US2936812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making flexible corrugated reenforced hose
Assignee: Individual
•
Filing: 1957-09-03
•
Granted: 1960-05-17
•
Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Robert E Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; B29K; B29K2021/00; B29L; B29L2023/00; B29L2023/18; Y; Y10; Y10S; Y10S264/00; Y10S264/52; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2248898A
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US2314611A
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US2272704A
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US2446281A
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US2524679A
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US2486763A
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US2490513A
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US2713885A
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GB651097A
Cited
US2723426A
Cited
US2797730A
Cited
US2837121A
Cited
US2779976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |