Patent US5540525A successfully refreshed from Google Patents.
Patent US4414251A successfully refreshed from Google Patents.
US4414251A
Expired / Lapsed
US
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Method for moisture-proofing refractory fiber for use in fire-resistant enclosures
Assignee: Individual
•
Filing: 1981-07-31
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Granted: 1983-11-08
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Expires: 2001-07-31
Abstract
Abstract A method for moisture-proofing refractory fiber material by applying paraffin emulsified in water to the material, drying it, and then coating it with vinyl mastic paint.
Inventors
- 👤 Thomas W. Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:12
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/28; Y; Y10; Y10S; Y10S220/00; Y10S220/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A method for moisture-proofing refractory fiber material comprising emulsifying paraffin in water, applying the emulsion to the refractory fiber material, drying the refractory fiber material after the emulsion has been applied, and coating the refractory fiber material with at least one coat of vinyl mastic paint.
Claim 2
Independent Claim
46 words
A method for moisture-proofing refractory fiber material comprising emulsifying paraffin in water, applying the emulsion to the refractory fiber material, drying the refractory fiber material after the emulsion has been applied, and coating the refractory fiber material with at least one coat of vinyl mastic paint.
References Cited (Backward Citations)
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Cited
GB680871A
Cited
US2867538A
Cited
US3354180A
Cited
US3352009A
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US3374100A
Cited
US3865606A
Cited
US4307813A
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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) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |