US3447582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating polymers and the like
Assignee: Leesona Corp
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Filing: 1967-08-01
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Granted: 1969-06-03
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Expires: 1987-08-01
Abstract
No abstract record available.
Inventors
- 👤 Louis F Street
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:01
CPC Classifications
B; B01; B01J; B01J10/00; B01J10/02; B01J19/00; B01J19/18; B01J19/20; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/46; B29B7/48; B29B7/482; B29B7/484; B29B7/488; B29B7/489; B29B7/80; B29B7/82; B29B7/826; B29B7/84; B29B7/845; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/40; B29C48/41; B29C48/50; B29C48/76; B29C48/765; B29C48/766; B29C48/03
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) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |