US3307616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of protecting a heat-resistant element from hot media
Assignee: BBC Brown Boveri AG Germany
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Filing: 1964-11-27
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Granted: 1967-03-07
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Expires: 1984-11-27
Abstract
No abstract record available.
Inventors
- 👤 Giger Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:14
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/16; F27D1/1678; C; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/5025; F23; F23M; F23M5/00; F23M5/08; F23M5/085; F23R; F23R3/00; F23R3/007; F27D1/12; C04B2111/00; C04B2111/72; F23M2700/00; F23M2700/005; F23R2900/00; F23R2900/03041; F27D2001/1605; F27D2001/1615; F27D3/00; F27D3/16; F27D2003/161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A METHOD OF PROTECTING THE SURFACE OF A GASPERMEABLE HEAT-RESISTANT ELEMENT THAT IS TO BE EXPOSED TO HIGH TEMPERATURE WHICH COMPRISES FLOWING A SUSPENSION OF A FINELY DIVIDED SOLID IN A COOLING GAS THROUGH SAID ELEMENT TO SAID SURFACE.
Claim 2
Independent Claim
39 words
A METHOD OF PROTECTING THE SURFACE OF A GASPERMEABLE HEAT-RESISTANT ELEMENT THAT IS TO BE EXPOSED TO HIGH TEMPERATURE WHICH COMPRISES FLOWING A SUSPENSION OF A FINELY DIVIDED SOLID IN A COOLING GAS THROUGH SAID ELEMENT TO SAID SURFACE.
References Cited (Backward Citations)
US2941759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |