US2629129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for milling plastics
Assignee: Dow Chemical Co
•
Filing: 1950-07-28
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Granted: 1953-02-24
•
Expires: 1970-07-28
Abstract
No abstract record available.
Inventors
- 👤 Alden W Hanson
- 👤 Walter E Donaldson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:06
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2155303A
Cited
US2200875A
Cited
US2259058A
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US2264237A
Cited
US2316283A
Cited
US2478885A
Cited
US2571760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |