Patent US2652929A successfully refreshed from Google Patents.
US2652929A
Expired / Lapsed
US
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Device for handling of wet sticky pastes
Assignee: Wyeth Holdings LLC
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Filing: 1951-03-20
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Granted: 1953-09-22
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Expires: 1971-03-20
Abstract
No abstract record available.
Inventors
- 👤 Aagaard Fridtjof
- 👤 Howard G Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:25
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/073; B01D33/09; B01D33/44; B01D33/46; B01D33/466; B01D33/48; B01D33/52; B01D33/70; B01D33/72
Claims Analysis
Total Claims: 0
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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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |