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US2936073A
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Filtration of titania hydrate
Assignee: Wyeth Holdings LLC
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Filing: 1957-10-31
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Granted: 1960-05-10
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Expires: 1977-10-31
Abstract
No abstract record available.
Inventors
- 👤 Thompson George Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:11
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/073; B01D33/44; B01D33/46; B01D33/466; B01D33/58; B01D33/62; B01D33/66; B01D33/666
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A METHOD OF SEPARATING ADHESIVE, PLASTIC, WATERWASHED TITANIA HYDRATE FROM A ROTATING SURFACE OF A CONTINUOUSLY ROTATING VACUUM FILTER, WHICH COMPRISES POSITIONING A HEATED TAKE-OFF BLADE AGAINST SAID SURFACE AND PARTING HYDRATE THEREFROM WITH SAID BLADE, THE TEMPERA-
Claim 2
Independent Claim
38 words
A METHOD OF SEPARATING ADHESIVE, PLASTIC, WATERWASHED TITANIA HYDRATE FROM A ROTATING SURFACE OF A CONTINUOUSLY ROTATING VACUUM FILTER, WHICH COMPRISES POSITIONING A HEATED TAKE-OFF BLADE AGAINST SAID SURFACE AND PARTING HYDRATE THEREFROM WITH SAID BLADE, THE TEMPERA-
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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) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |