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US2477009A
Expired / Lapsed
US
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Manufacture of plastic molding powders
Assignee: HUNGERFORD PLASTICS Corp
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Filing: 1945-02-15
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Granted: 1949-07-26
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Expires: 1965-02-15
Abstract
No abstract record available.
Inventors
- 👤 Sandler Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:42
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/80; B29B7/88; B29B7/94; B29B7/945; B01; B01F; B01F25/00; B01F25/70; B01F33/00; B01F33/80; B01F33/836; B01F33/8363; Y; Y10; Y10S; Y10S524/00; Y10S524/904
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) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |