US3200750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating device
Assignee: Individual
•
Filing: 1962-03-15
•
Granted: 1965-08-17
•
Expires: 1982-03-15
Abstract
No abstract record available.
Inventors
- 👤 Dale L Burrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:17
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B10/00; F42B10/32; F42B10/38; F42B10/42; F42B10/46; F42B15/00; F42B15/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A HEAT RESISTANT DEVICE COMPRISING: (A) A SHELL; (B) MEANS DISPOSED ON SAID SHELL FOR PROTECTING SAID SHELL FROM HIGH TEMPERATURES, (C) SAID MEANS INCLUDING A BRUSH-LIKE ARRANGEMENT OF FIBERS, AND (D) SAID BRUSH-LIKE ARRANGEMENT OF FIBERS BEING SO ORIENTED AND SO FINE AS FAR AS A BOUNDARY LAYER IS CONCERNED THAT THE SURFACE THEREOF IS ESSENTIALLY SMOOTH TO PROMOTE AN INCREASE OF LAMINAR FLOW VERY MUCH IN LINE WITH THE PHENOMENA OCCURRING ON THE FEATHERED SURFACES OF BIRDS.
Claim 2
Dependent Claim
79 words
A HEAT RESISTANT DEVICE COMPRISING: (A) A SHELL; (B) MEANS DISPOSED ON SAID SHELL FOR PROTECTING SAID SHELL FROM HIGH TEMPERATURES, (C) SAID MEANS INCLUDING A BRUSH-LIKE ARRANGEMENT OF FIBERS, AND (D) SAID BRUSH-LIKE ARRANGEMENT OF FIBERS BEING SO ORIENTED AND SO FINE AS FAR AS A BOUNDARY LAYER IS CONCERNED THAT THE SURFACE THEREOF IS ESSENTIALLY SMOOTH TO PROMOTE AN INCREASE OF LAMINAR FLOW VERY MUCH IN LINE WITH THE PHENOMENA OCCURRING ON THE FEATHERED SURFACES OF BIRDS.
References Cited (Backward Citations)
US2731359A
Cited
US3010398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |