Patent US3373145A successfully refreshed from Google Patents.
US3373145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing of polymer particulates by regular periodic ebb and flow of aqueous solvent
Assignee: Honeywell International Inc
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Filing: 1965-04-29
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Granted: 1968-03-12
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Expires: 1985-04-29
Abstract
No abstract record available.
Inventors
- 👤 John W Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:20
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/46; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0207; B01D11/0215; B01D11/0223; B01D11/0242; B01D2011/002
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) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |