US3698986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing hose
Assignee: Individual
•
Filing: 1970-07-13
•
Granted: 1972-10-17
•
Expires: 1990-07-13
Abstract
Abstract AN APPARATUS FOR MANUFACTURING A HOSE FREE OF INTERNAL STRESS BUT HAVING HIGH FLEXIBILITY BY CONTINUOUSLY WINDING A SYNTHTIC RESIN STRIP EXTRUDED FROM AN EXTRUDER IN HALFMOLTEN STATE AROUND A SPIRAL MEMBER ON A ROTARY SHAFT WHICH HAS FULLY BEEN RESTORED BY THE RESILIENY OF ITS OWN TO THE NATURAL CONDITION AFTER HAVING SPIRALLY WOUND ON THE SHAFT.
Inventors
- 👤 Akira Okmura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:36
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B31; B31C; B31C3/00; B29K; B29K2101/00; B29K2101/12; B29L; B29L2023/00; B29L2023/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |