US2589417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heating and mixing plastic compositions
Assignee: Individual
•
Filing: 1949-03-22
•
Granted: 1952-03-18
•
Expires: 1969-03-22
Abstract
No abstract record available.
Inventors
- 👤 Mittelmann Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:55
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/022; Y; Y10; Y10S; Y10S159/00; Y10S159/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1972050A
Cited
GB517798A
Cited
US2319852A
Cited
US2308416A
Cited
GB571814A
Cited
GB567731A
Cited
US2459260A
Cited
US2465102A
Cited
US2446557A
Cited
US2473143A
Cited
US2458563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |