US3067083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction cleaner hose
Assignee: H O CANFIELD CO
•
Filing: 1958-05-28
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Granted: 1962-12-04
•
Expires: 1978-05-28
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Renhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:46
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF MAKING A FLEXIBLE WIRE-REINFORCED PLASTIC HOSE HAVING IMPRIVED ABILITY TO WITHSTAND WHIPPING MOVEMENTS COMPRISING INSERTING AN AXIALLY STRETCHED PLASTIC-COATED HELICAL COIL INTO A RADIALLY EXPANDED TUBE OF PLASTICIZED THERMOPLASTIC MATERIAL,ALLOWING THE TUBE TO CONTRACT AND EMBRACE THE AXIALLY EXTENDED COIL, HEATING THE COIL AND THE TUBE WHILE AXIALLY EXTENDING THE COIL BY AXIAL TENSION TO FORM CORRUGATIONS BETWEEN THE COIL
Claim 2
Independent Claim
63 words
A METHOD OF MAKING A FLEXIBLE WIRE-REINFORCED PLASTIC HOSE HAVING IMPRIVED ABILITY TO WITHSTAND WHIPPING MOVEMENTS COMPRISING INSERTING AN AXIALLY STRETCHED PLASTIC-COATED HELICAL COIL INTO A RADIALLY EXPANDED TUBE OF PLASTICIZED THERMOPLASTIC MATERIAL,ALLOWING THE TUBE TO CONTRACT AND EMBRACE THE AXIALLY EXTENDED COIL, HEATING THE COIL AND THE TUBE WHILE AXIALLY EXTENDING THE COIL BY AXIAL TENSION TO FORM CORRUGATIONS BETWEEN THE COIL
References Cited (Backward Citations)
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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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |