US2426969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Depositing device for plastic materials
Assignee: PENNSYLVANIA Manufacturing Co
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Filing: 1943-12-01
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Granted: 1947-09-02
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Expires: 1963-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard Thomas Hallowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:10
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C70/74; B29C31/00; B29C31/04; B29C31/041; B29C31/06; B29C39/00; B29C39/02; B29C39/10; B29K; B29K2091/00; B29L; B29L2031/00; B29L2031/748; B29L2031/7494; Y; Y10; Y10S; Y10S118/00; Y10S118/03
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) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |