US3459628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urethane foam corrosion protection
Assignee: Westinghouse Electric Corp
•
Filing: 1966-05-18
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Granted: 1969-08-05
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Expires: 1986-05-18
Abstract
No abstract record available.
Inventors
- 👤 Robert R Dixon
- 👤 Leonard C Flowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:06
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0066; C08J9/0004; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/02; C08K5/04; C08K5/14; C08K5/56; C08J2375/00; C08J2375/04; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24744; Y10T428/249921; Y10T428/249953; Y10T428/249954; Y10T428/249976; Y10T428/249986; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A THERMALLY INSUALTED STRUCTURE HAVING AN INNER COLD WALL AND AN OUTER WALL, THE INNER WALL BEING METAL AND SPACED FROM THE OUTER WALL, AND HAVING FOAMED INSULATION EMBODYING A VOLATILE HALOGENATED ORGANIC COMPOUND BETWEEN AND IN CONTACT WITH THE WALLS, THE HALOGENATED ORGANIC COMPOUND TENDING IN THE PRESENCE OF MOISTURE TO DECOMPOSE TO FORM ACIDIC PRODUCTS, THE IMPROVEMENT COMPRISING INCORPORATING AN EFFECTIVE AMOUNT OF A FINELY DIVIDED ANTIACID INTO THE FOAMED INSULATION TO PROVIDE FOR A NEUTRALIZING REACTION WITH THE ACIDIC PRODUCTS.
Claim 2
Dependent Claim
84 words
IN A THERMALLY INSUALTED STRUCTURE HAVING AN INNER COLD WALL AND AN OUTER WALL, THE INNER WALL BEING METAL AND SPACED FROM THE OUTER WALL, AND HAVING FOAMED INSULATION EMBODYING A VOLATILE HALOGENATED ORGANIC COMPOUND BETWEEN AND IN CONTACT WITH THE WALLS, THE HALOGENATED ORGANIC COMPOUND TENDING IN THE PRESENCE OF MOISTURE TO DECOMPOSE TO FORM ACIDIC PRODUCTS, THE IMPROVEMENT COMPRISING INCORPORATING AN EFFECTIVE AMOUNT OF A FINELY DIVIDED ANTIACID INTO THE FOAMED INSULATION TO PROVIDE FOR A NEUTRALIZING REACTION WITH THE ACIDIC PRODUCTS.
References Cited (Backward Citations)
US3091946A
Cited
US3297582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |