Patent US2927909A successfully refreshed from Google Patents.
US2927909A
Expired / Lapsed
US
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Masonry water repellent composition
Assignee: —
•
Filing: —
•
Granted: 1960-03-08
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Expires: 1977-03-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:04
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C04; C04B; C04B24/00; C04B24/40; C04B24/42; C04B28/00; C04B28/02; C04B40/00; C04B40/0028; C04B40/0039; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/49; C04B41/4905; C04B41/4922; C04B41/495; C04B41/4961; C04B41/60; C04B41/61; C04B41/62; C04B41/64; C08L; C08L83/00; C08L83/04; C04B2103/00; C04B2103/60; C04B2103/65; C04B2111/00; C04B2111/20; C04B2111/27
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A MIXTURE OF (1) FROM 65 TO 85% BY WEIGHT OF A METHYLSILOXANE HAVING A COMPOSITION OF FROM 65 TO 80 MOL PERCENT MONOMETHYLSILOXANE, FROM 15 TO 30 MOL PERCENT DIMETHYLSILOXANE AND UP TO 5 MOL PERCENT TRIMETHYLSILOXSANE, SAID SILOXANE (1) CONTAINING FROM 1 TO 12% BY WEIGHT SILICON-BONDED METHOXY GROUPS AND (2) FROM 15 TO 35% BY WEIGHT OF A MONOPROPYLSILOXANE CONTAINING FROM 15 TO 60% BY WEIGHT SILICON-BONDED ETHOXY GROUPS.
Claim 2
Dependent Claim
79 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A MIXTURE OF (1) FROM 65 TO 85% BY WEIGHT OF A METHYLSILOXANE HAVING A COMPOSITION OF FROM 65 TO 80 MOL PERCENT MONOMETHYLSILOXANE, FROM 15 TO 30 MOL PERCENT DIMETHYLSILOXANE AND UP TO 5 MOL PERCENT TRIMETHYLSILOXSANE, SAID SILOXANE (1) CONTAINING FROM 1 TO 12% BY WEIGHT SILICON-BONDED METHOXY GROUPS AND (2) FROM 15 TO 35% BY WEIGHT OF A MONOPROPYLSILOXANE CONTAINING FROM 15 TO 60% BY WEIGHT SILICON-BONDED ETHOXY GROUPS.
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) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |