US2726176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproofing porous ceramic materials with ethylsiloxanol and article produced thereby
Assignee: Honeywell International Inc
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Filing: 1950-08-07
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Granted: 1955-12-06
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Expires: 1970-08-07
Abstract
No abstract record available.
Inventors
- 👤 David B Hatcher
- 👤 Raymond H Bunnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:06
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/49; C04B41/4905; C04B41/495; C04B41/4961; C04B41/4966; C04B41/60; C04B41/61; C04B41/62; C04B41/64; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/46; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD OF WATERPROOFING POROUS UNGLAZED CERAMIC MATERIALS THAT COMPRISES APPLYING THERETO A VOLATILE SOLVENT SOLUTION CONTAINING FROM ABOUT 5 TO ABOUT 35 PER CENT BY WEIGHT OF AN ETHYLSILOXANOL HAVING AN OVERALL RATIO OF NON-HYDROLYZABLE GROUPS TO SILICON ATOMS OF 0.3 TO 1, IN WHICH 30 TO 100% OF THE SILICON ATOMS HAVE A SINGLE ETHYL GROUP ATTACHED THERETO AS THE SOLE NON-HYDROLYZABLE SUBSTITUENT, IN WHICH NO SUBSTANTIAL NUMBER OF
Claim 2
Independent Claim
71 words
A METHOD OF WATERPROOFING POROUS UNGLAZED CERAMIC MATERIALS THAT COMPRISES APPLYING THERETO A VOLATILE SOLVENT SOLUTION CONTAINING FROM ABOUT 5 TO ABOUT 35 PER CENT BY WEIGHT OF AN ETHYLSILOXANOL HAVING AN OVERALL RATIO OF NON-HYDROLYZABLE GROUPS TO SILICON ATOMS OF 0.3 TO 1, IN WHICH 30 TO 100% OF THE SILICON ATOMS HAVE A SINGLE ETHYL GROUP ATTACHED THERETO AS THE SOLE NON-HYDROLYZABLE SUBSTITUENT, IN WHICH NO SUBSTANTIAL NUMBER OF
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |