US3460579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated flexible sub-zero hose
Assignee: Individual
•
Filing: 1966-04-12
•
Granted: 1969-08-12
•
Expires: 1986-04-12
Abstract
No abstract record available.
Inventors
- 👤 Robert A Clarkson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:56
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; F16L59/153; F16L59/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A FLEXIBLE METAL HOSE ASSEMBLY FOR TRANSFER OF SUBFREEZING TEMPERATURES FLUIDS WHICH COMPRISES IN COMBINATION, A FLEXIBLE CORRUGATED INNER METAL TUBE, A BRAIDED WIRE SHEATH ENCASING SAID CORRUGATED INNER METAL TUBE ENCLOSING AN INSULATED AIR SPACE IN EACH CORRUGATION AND A THICK FLEXIBLE INSULATING LAYER MOUNTED OVER SAID FLEXIBLE CORRUGATED METAL AND METAL BRAID EXTENDING THE LENGTH THEREOF, WHEREBY THE HOSE ASSEMBLY REMAINS FLEXIBLY ICE FREE AND MANAGEABLE AT LOW TEMPERATURES.
Claim 2
Dependent Claim
71 words
A FLEXIBLE METAL HOSE ASSEMBLY FOR TRANSFER OF SUBFREEZING TEMPERATURES FLUIDS WHICH COMPRISES IN COMBINATION, A FLEXIBLE CORRUGATED INNER METAL TUBE, A BRAIDED WIRE SHEATH ENCASING SAID CORRUGATED INNER METAL TUBE ENCLOSING AN INSULATED AIR SPACE IN EACH CORRUGATION AND A THICK FLEXIBLE INSULATING LAYER MOUNTED OVER SAID FLEXIBLE CORRUGATED METAL AND METAL BRAID EXTENDING THE LENGTH THEREOF, WHEREBY THE HOSE ASSEMBLY REMAINS FLEXIBLY ICE FREE AND MANAGEABLE AT LOW TEMPERATURES.
References Cited (Backward Citations)
US1809874A
Cited
US2146559A
Cited
US2150471A
Cited
US2879803A
Cited
GB874007A
Cited
US3095337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |