Patent US2964415A successfully refreshed from Google Patents.
US2964415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous film forming compositions
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-03-12
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Granted: 1960-12-13
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Expires: 1978-03-12
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Payne
- 👤 George D Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:42
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C01; C01B; C01B33/00; C01B33/20; C04B22/00; C04B22/08; C04B22/16; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A FIRM FORMING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF AN ALKALI METAL SILICATE AND AN ALKALI METAL POLYPHOSPHATE, THE SAID ALKALI METAL SILICATE HAVING A MOLAR RATIO OF ABOUT 2.56 TO ABOUT 4.16 MOLS OF SIO2 TO ONE MOL OF M2O WHEREIN M IS AN ALKALI METAL, THE SAID ALKALI METAL POLYPHOSPHATE CONTAINING MORE THAN TWO PHOSPHORUS ATOMS AND HAVING A MOLAR RATIO OF M''2O WHEREIN M'' IS AN ALKALI METAL TO P2O5 OF 0.8:1 TO ABOUT 1.7:1, THE MOLAR AMOUNT OF P2O5 IN THE FORM OF THE SAID
Claim 2
Dependent Claim
89 words
A FIRM FORMING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF AN ALKALI METAL SILICATE AND AN ALKALI METAL POLYPHOSPHATE, THE SAID ALKALI METAL SILICATE HAVING A MOLAR RATIO OF ABOUT 2.56 TO ABOUT 4.16 MOLS OF SIO2 TO ONE MOL OF M2O WHEREIN M IS AN ALKALI METAL, THE SAID ALKALI METAL POLYPHOSPHATE CONTAINING MORE THAN TWO PHOSPHORUS ATOMS AND HAVING A MOLAR RATIO OF M''2O WHEREIN M'' IS AN ALKALI METAL TO P2O5 OF 0.8:1 TO ABOUT 1.7:1, THE MOLAR AMOUNT OF P2O5 IN THE FORM OF THE SAID
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |